Un disciple tardif de Rogier de la Pasture: Maître Johannes (alias Johannes Hoesacker?)

2001 ◽  
Vol 114 (2-4) ◽  
pp. 79-106
Author(s):  
Didier Martens

AbstractThe triptych which has hung above the main altar of Our Lady of the Immaculate Conception at Maria-ter-Heide (Brasschaat, near Antwerp) since the nineteenth century unfolds a highly unusual iconographical programme. The representation on the central panel is a 'Holy Kinship' with Saint Anne; the left and right shutters show a 'Tree of Jesse', and the 'Kinship of Effra and Ismeria' respectively. This unusual combination of themes, and the coat of arms of the abbey at Tongerlo on the staff of the kneeling donor on the left shutter, enable us to identify the triptych from an old description, predating 1615, of the art treasures in the abbey at Tongerlo. As early as 1888 canon Van Spilbeek was able to demonstrate on the basis of two entries in the abbey's ledgers that the retable was made around 1513-1515. It was commissioned by the then abbot of Tongerlo, Antonius Tsgrooten. The painter's name appears on both bills of payment of 1513-1515. He was called Johannes, and he was married to Marie Hoesacker. His apparent lack of a surname might intimate that he was a foundling. Hitherto, the triptych in Maria-ter-Heide was the only known work by 'Johannes'. The author suggests that he also painted the monumental triptych with scenes from the lives of Christ and Mary which has been on loan to the museum at Àvila since 1971 from the Provincial Council. In 1968 Karel G. Boon attributed this work to an anonymous North-Netherlandish painter. According to Boon the same artist painted two wings with John the Baptist and Saint Agnes (Paris, private collection) and a 'Baptism of Christ' (Madrid, private collection). 'Johannes' could be the maker of these three works. What is more, the painter of the triptych in Maria-ter-Heide could be credited with two retable wings which have been in the Museo de Santa Cruz in Toledo since the 19608. Their subjects are 'Saint Andrew with Saint Francis' and 'Saint James with Saint Antony of Padua'; on the back of these panels is a 'Visitation'. Judging by the numerous figures he borrowed from Rogier van der Weyden, 'Johannes' seems to have been fascinated by the great Brussels master. His interest in Van der Weyden's art and the fact that he worked for the abbot of Tongerlo suggest that he was active in Brabant. The Dutch elements which Boon claimed to recognise on the Àvila triptych are quite inconspicuous, proving how dangerous it is to determine an artist's provenance solely on the basis of aesthetic impressions. The iconographic programme on the triptychs in Maria-ter-Heide and Avila and the retable wings in Toledo is highly unusual. This indicates that they were not made for the open market on the painter's own initiative, but were ordered specially. Perhaps 'Johannes' ability to convert such iconographic programmes into pictures was one of the reasons for his success a success which, in view of the presence of two of his works in Castile, assumes an international dimension.

Author(s):  
Marcin Drąg

Development of liturgical space in Franciscan churches between 13thand 18th centuries The aim of this writing is to show changes which took place in sacral space of Fran-ciscan temples. At first Friars Minor Conventual were occupying small, abandoned churches. There they found their space for prayer. However, the first generation of Marcin Drąg OFMConv98 the followers of St. Francis did not possess their own sacral area. Instead, they were only its users.Letters of the order’s founder are clearly defining sensitivity connected with cult which all members of the order should possess. Therefore emerges a need of sacral space’s arrangement just in the first decades of the order. Thanks to papal privileges and a demand for ceremonial celebration of liturgy, Franciscan churches are equipped with choirs, lecterns and all paraments needed. This fact is affirmed by Ordinationes(the Franciscan liturgical statutes).The 1260 Narbonne constitutions defined a plan for sacral space of Franciscan churches. It was based on order’s spirituality. The crucified Saviour is put in the middle of this plan. His sacrifice is being re-lived in the mystery of the Holly Mass. Virgin Mary and Saint John the Apostle are participating in this sacrifice as represent-atives of the Church, while Saint Francis and Saint Anthony are representing people redempted with Christ’s blood. By following Jesus, they have received a prize of His eternal companion in heavenly glory.Simultaneously with arrangement of God’s service in conventual churches, friars are becoming more open to fraternity, which determine later arrangements in space of Franciscan churches. Many churches has become places of relics worship and important shrines, with Assisi and Padua among others. Spirituality of the Order and devotion of people have led to creation of side chapels and altars which were spon-sored by benefactors, who received Holly Masses, celebrated for them, and pastoral care in exchange.The 1632 constitutions of Pope Urban the 8th together with order’s etiquette from 1759 are re-affirming the original message of Franciscan temples. It is based on mys-teries of salvation which are represented by the crucified Jesus Christ, the Immaculate Conception of Virgin Mary and Franciscan Saints who with their lives example have shown a way to glory. The idea of Franciscan devotion is represented in dedicated altars and ceremonial processions.In modern age, churches of Friars Minor Conventual were constantly influenced by changes of Renaissance (15th century) and Baroque (from 18th century), which composition was totally different from Gothic. However, despite some architectural changes, the Franciscan idea of devotion, which was included in the plan of churches, has remained the same.The analysis of sacral space in Franciscan churches which has been conducted in this article heads to a conclusion of constant development of Franciscan churches interiors. The changes which took place during 13th and 18th centuries were dictated by evolution of order’s spirituality and needs of believers.


2006 ◽  
Vol 119 (1) ◽  
pp. 41-64

AbstractThis article focuses on a Flemish triptych dating from 1530-1540; it is kept in the convent of Clares Santa Maria de Pedralbes (Barcelona), and can be attributed to the workshop of Pieter Coeck of Aelst. On the central panel is a representation of the Holy Family at work. In order to depict this less well-known theme the artist resorted to several models: Durer's woodcut from the Marienleben, another woodcut which was printed in the convent of Onze-Lieve-Vrouw ten Troost in Vilvoorde (Brussels) and a composition known to us from a version of the Master of the Antwerp Adoration belonging to the Stedelijk Museum in Delft. Due to its unusual iconographical programme we may assume that the triptych was commissioned by a Spanish Clare. The presence of Saints Clare and Agnes on the left-hand panel and of Saint Francis on the right-hand panel strongly suggests that the work was meant for a convent. Normally, female saints would have been on the right-hand side and Saint Francis on the left, in keeping with the heraldic conventions for males and females on Flemish triptychs. However, the Spanish Clare, who surely had contacts with the painter, wanted a more privileged place for women on 'her' triptych, ad dexteram Christi. In 1540-1560 the triptych, together with three other paintings, was converted into the form of an Iberian retable, which bears the arms of Mother Teresa de Cardona, who had probably commissioned the Flemish triptych. It looks less exotic in its new configuration of a more Spanish character. One might speak of a certain normalization that is not just aesthetic but iconographic too. When the triptych was inserted into the retabló, its wings were exchanged, so that the female saints now stand on the right side of the central panel, a position that is surely more in keeping with the prevailing conventions.


Author(s):  
George Hug ◽  
William K. Schubert ◽  
Shirley Soukup

McKusick subdivided the syndrome of mucopolysaccharidoses into six types according to clinical, roentenographic, and genetic criteria and to the kind of mucopolysaccharide(s) excreted in the urine (1). Deficient activity of a lysosomal enzyme, (β-galactosidase, has recently been reported in types I, II and III of mucopolysaccharidoses as well as in generalized gangliosidosis (2). This apparent lack of disease specificity makes the enzymatic deficiency difficult to interpret. Nevertheless, the involvement of a lysosomal enzyme tends to characterize these disorders as lysosomal diseases.


Author(s):  
S. Trachtenberg ◽  
D. J. DeRosier

The bacterial cell is propelled through the liquid environment by means of one or more rotating flagella. The bacterial flagellum is composed of a basal body (rotary motor), hook (universal coupler), and filament (propellor). The filament is a rigid helical assembly of only one protein species — flagellin. The filament can adopt different morphologies and change, reversibly, its helical parameters (pitch and hand) as a function of mechanical stress and chemical changes (pH, ionic strength) in the environment.


Author(s):  
William P. Wergin ◽  
Eric F. Erbe

The eye-brain complex allows those of us with normal vision to perceive and evaluate our surroundings in three-dimensions (3-D). The principle factor that makes this possible is parallax - the horizontal displacement of objects that results from the independent views that the left and right eyes detect and simultaneously transmit to the brain for superimposition. The common SEM micrograph is a 2-D representation of a 3-D specimen. Depriving the brain of the 3-D view can lead to erroneous conclusions about the relative sizes, positions and convergence of structures within a specimen. In addition, Walter has suggested that the stereo image contains information equivalent to a two-fold increase in magnification over that found in a 2-D image. Because of these factors, stereo pair analysis should be routinely employed when studying specimens.Imaging complementary faces of a fractured specimen is a second method by which the topography of a specimen can be more accurately evaluated.


Author(s):  
R.V. Harrison ◽  
R.J. Mount ◽  
P. White ◽  
N. Fukushima

In studies which attempt to define the influence of various factors on recovery of hair cell integrity after acoustic trauma, an experimental and a control ear which initially have equal degrees of damage are required. With in a group of animals receiving an identical level of acoustic trauma there is more symmetry between the ears of each individual, in respect to function, than between animals. Figure 1 illustrates this, left and right cochlear evoked potential (CAP) audiograms are shown for two chinchillas receiving identical trauma. For this reason the contralateral ear is used as control.To compliment such functional evaluations we have devised a scoring system, based on the condition of hair cell stereocilia as revealed by scanning electron microscopy, which permits total stereociliar damage to be expressed numerically. This quantification permits correlation of the degree of structural pathology with functional changes. In this paper wereport experiments to verify the symmetry of stereociliar integrity between two ears, both for normal (non-exposed) animals and chinchillas in which each ear has received identical noise trauma.


Author(s):  
Jiang Xishan

This paper reports the growth step pattern and morphology at equilibrium and growth states of (Mn,Fe)S single crystal on the wall of micro-voids in ZG25 cast steel by using scanning electron microscope. Seldom report was presented on the growth morphology and steppattern of (Mn,Fe)S single crystal.Fig.1 shows the front half of the polyhedron of(Mn,Fe)S single crystal,its central area being the square crystal plane,the two pairs of hexagons symmetrically located in the high and low, the left and right with a certain, angle to the square crystal plane.According to the symmetrical relationship of crystal, it was defined that the (Mn,Fe)S single crystal at equilibrium state is tetrakaidecahedron consisted of eight hexagonal crystal planes and six square crystal planes. The macroscopic symmetry elements of the tetrakaidecahedron correpond to Oh—n3m symmetry class of fcc structure,in which the hexagonal crystal planes are the { 111 } crystal planes group,square crystal plaits are the { 100 } crystal planes group. This new discovery of the (Mn,Fe)S single crystal provides a typical example of the point group of Oh—n3m.


Author(s):  
Alain Noel ◽  
Jean-Philippe Therien

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