Jean de Bourbon, Lord of Carency (1378–1457), was a French prince du sang from the House of Bourbon-La Marche, a cadet branch of the House of Bourbon (itself a cadet branch of the Capetian dynasty).
[1] He was the youngest son of John I, Count of La Marche and his wife Catherine of Vendôme and the brother of James II, Count of La Marche (also King of Naples by marriage), Louis, Count of Vendôme (founder of the House of Bourbon-Vendôme, from which all post-1589 French Kings descend in the male line), Anne of Bourbon (Queen of Bavaria by marriage), and Charlotte of Bourbon (Queen of Cyprus by marriage).
[1] Jean and Catherine had no children, and after Catherine's death in 1420, Jean married his mistress Jeanne of Vendômois, the daughter of Hamelin of Vendômois and Alix of Bessé, on September 3 of the very same year at Le Mans.
[1][2] Jean de Bourbon had several children with Jeanne de Vendômois:[1] Getting Jean and Jeanne's children recognized as legitimate was a huge struggle and was only achieved in 1438 through a papal bull by Pope Eugene IV.
[1] In addition, for whatever reason(s), Jean and Jeanne's descendants in the Bourbon-Carency line were never invited to take a seat in the Conseil du Roi.