PerronetdeVillamastray served as bailli of the Principality of Achaea for Prince John of Gravina from November 1322 until 1323. Bon 1969, pp. 204–205...
[The Frankish Morea. Historical, Topographic and Archaeological Studies on the Principality of Achaea] (in French). Paris: De Boccard. OCLC 869621129....
Nicolas de Joinville was a French knight who served as bailli of the Principality of Achaea for Prince John of Gravina from 1323, until the Prince's arrival...
Archaeological Studies on the Principality of Achaea] (in French). Paris: De Boccard. OCLC 869621129. Dourou-Iliopoulou, Maria (2005). Το Φραγκικό Πριγκιπάτο...