Mary of Hungary, Queen of Naples

Mary of Hungary (c. 1257 – 25 March 1323), of the Árpád dynasty, was Queen of Naples and Queen of Albania by marriage to King Charles II. She was the daughter of Stephen V of Hungary and Elizabeth the Cuman. Mary served as regent in Provence in 1290–1294 and in Naples in 1295–1296, 1296–1298, and 1302, during the absences of her husband.

Source: Wikipedia — https://en.wikipedia.org/wiki/Mary_of_Hungary,_Queen_of_Naples