Beatrice of Hungary, Dauphine of Viennois

Beatrice of Hungary (1290 – 1343 or 1354) was the elder daughter of Charles Martel of Anjou, titular King of Hungary, and Clemence of Habsburg, and sister of Charles I of Hungary. In 1296, aged six, she was married at Naples to the ten-years-older John II of Viennois, Dauphin of Viennois. She bore him two sons, Guigues VIII and Humbert II, both later dauphins.

After John died in 1319 she became a nun at Cîteaux, moving in 1340 to Saint-Just-de-Claix Abbey, which her son Humbert had founded for her. She died there in 1343 or 1354.