Charles I d'Albret was the Lord of Albret and the Constable of France from 1402 until 1411, and again from 1413 until 1415. He was also the co-commander of the French army at the Battle of Agincourt where he was killed by the English forces led by King Henry V.

The House of Albret, which derives its name from the lordship (seigneurie) of Albret (Labrit), situated in the Landes, was one of the most powerful feudal families of France and Navarre during the Middle Ages.