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The Descendants of the Illegitimate Sons and Daughters of the Kings of Britain, known to many as the “Royal Bastards,” is a lineage society founded in 1950 by some of the English-speaking world’s foremost genealogical scholars. The purpose of the Royal Bastards was, and is, to foster the highest standards of genealogical scholarship.

Membership in the Royal Bastards is open to individuals who prove descent from an illegitimate child, grandchild or great-grandchild of a king of England, Scotland, Wales, Great Britain or the United Kingdom. Since its founding in 1950, the “Royal Bastards” has set a very high bar for what is, for almost all applicants, the compilation of a lineage extending back to the Middle Ages. All of the charter members, and most of the officers of the society, have been Fellows of the American Society of Genealogists. Each asserted fact, and each asserted filiation from parent to child, in every applicant’s lineage must be supported with primary-source documentation. Our standards are discussed more fully on the Membership page. Another page on this site provides information on the History and Mission and [forthcoming] the distinctive coat of arms of the Royal Bastards.