The St. John Genealogy Project
Origin and Ancestry DNA Database & Electronic Archive
![]() | Maud de Clare, m. William de Braose![]() ![]() |
![]() | Roger de Clare, m. Alicia de Danmartin![]() ![]() |
![]() | William Marshall, m. Isabel de Clare![]() ![]() |
![]() | Isabel de Clare, m. William Marshall![]() ![]() |
![]() | Eva Marshall, m. William Braose![]() ![]() |
![]() | Isabel Marshall, de Clare, Countess of Cornwall![]() ![]() |
![]() | Richard de Clare, m. Maud de Lacy![]() ![]() |
![]() | Isabel de Clare, de Bruce![]() ![]() |
![]() | Susan de Clare, m. Gwenhuwin![]() |
![]() | William de Clare![]() |
![]() | Gilbert de Clare![]() |
Send a message
Join Our Y-DNA Project
Join Us On Social Media
As of June 15, 2024, our website requires a paid membership subscription to access premium content. Limited to paid members are Media, Notes and Private Notes, Repositories, Sources, reports, and charts for ancestors, descendants, and timelines, as well as other exclusive content, including some blog articles and historical biographies. To learn more about this change, please visit our membership information page.