https://www.katrinziegler.info/en/podcast/view/episodio5_puntata1-en.html
The witness – Frederick of Antioch, son of Frederick II, and the end of Pier delle Vigne
The episode is built around an imaginary but entirely plausible encounter between Frederick of Antioch, the Emperor's natural son and vicar general of Tuscany,...
frederick of antiochpier delle vignethe witnesssonend