According to Variety it looks like Tom Fontana will write a series about the Borgia clan. It will be executive produced by Chris Albrecht.
The first season will span 12-episodes and be shot in English in order to reach the widest possible sales market. The series is currently titled The Borgias.
Shooting will commence in Europe. No actors have been cast yet.
The plan is for the series to follow the Borgia family as they travel through Spain and Rome during the Renaissance. The family is "known for its reign of corruption and terror at the Vatican, when Rodrigo Borgia served as Pope Alexander VI from 1492-1503."