This book seeks a better understanding of the politics, society, and culture of early-modern Korea by tracing and narrating the history of the descendants of the Koryŏ dynasty (918–1392). Decades after persecution that virtually exterminated the former royals, the Kaesŏng Wang, the Chosŏn dynasty (1392–1910) sought to bolster its legitimacy as the successor of Koryŏ. Emulating Chinese historical precedents, by the mid-fifteenth century, Chosŏn had rehabilitated the surviving Wangs. Contrary to the popular assumption that the Wangs remained politically marginalized, many fared well. The most privileged among them won the patronage of the Chosŏn court for which they performed ancestral rites in honor of certain Koryŏ rulers as selected by Chosŏn, passed government service examinations, attained prestigious offices, commanded armies, and constituted elite lineages throughout Korea. As members of a revived aristocratic descent group, the Kaesŏng Wang were committed to Confucian cultural and moral norms, at the heart of which was a subject’s loyalty to the ruler—the Chosŏn monarch. At the same time, Chosŏn increasingly honored Koryŏ loyalists and legacies. An emerging body of subversive narratives, both written and oral, articulated sympathy toward the Wangs as victims of the tumultuous politics of the Koryŏ-Chosŏn dynastic change, although the Wangs themselves steered clear of this discourse until after Japan’s abolition of the Chosŏn monarchy in 1910. Forces of modernity such as imperialism, colonialism, nationalism, urbanization, industrialization, and immigration transformed the Kaesŏng Wang as the progeny of fallen royals to individuals from all walks of life.