Theobald II was King of Navarre and also, as Theobald V, Count of Champagne and Brie, from 1253 until his death. He was the son and successor of Theobald I and the second Navarrese monarch of the House of Blois. After he died childless, the throne of Navarre passed to his younger brother, Henry I.

Theobald I, also called the Troubadour and the Posthumous, was Count of Champagne from birth and King of Navarre from 1234. He initiated the Barons' Crusade, was famous as a trouvère, and was the first Frenchman to rule Navarre.