1911 Encyclopædia Britannica (1910)
“ His family, one of the numerous branches of the house of Gontaut, took its title from the territory of Biron in Périgord, where on a hill between the Dropt and the Lide still stands the magnificent castle begun by the lords of Biron in the 11th century. As a page of the queen of Navarre Biron attracted the notice of the marshal de Brissac, with whom he saw active service in Italy. A wound received by him in his early years made him lame for life, but he did not withdraw from the military career, and he held a command in Guise’s regiment of light horse in 1557. ”
