It comprised 12 knight's fiefs and was granted to Geoffrey Chauderon, probably of Champenois origin, who was also the Grand Constable of the Principality.

[3] Apart from Estamira, John also acquired possession of Roviata and lands in Italy, some of which he exchanged in 1289 with Hugh, Count of Brienne for the fortress of Beauvoir (Pontikokastron).

[3] The fate of the barony is unclear, but it seems that at some point it reverted to the princely domain; in 1315–1316 it was held by the forces of Ferdinand of Majorca.

[1] Finally, some time in the late 14th century, possibly in 1370, Prince Philip III ceded the barony, along with the title of Grand Constable, to Centurione I Zaccaria.

Theodora Tocco, wife of the Despot Constantine Palaiologos, died at Stameron/Estamira (often confused with Santameri Castle) in November 1429.