Bertha dalle Carceri

Bertha dalle Carceri (died 1240) was a Lombard noblewoman of Negroponte, the daughter of Ravano dalle Carceri, sole lord of Euboea until his death in 1216. The Venetian bailo then divided the island into six hexarchies, and Bertha received the southern third of Karystos jointly with her mother Isabella.

Under the settlement, a dead hexarch's share passed to the other holder of their third, not to their heirs. She ruled her sixth until her death in 1240.