The election of Charles of Anjou to the office of perpetual senator of Rome is mentioned by the historians in the viiith volume of the Collection of Muratori, by Nicholas de Jamsilla (p. 592), the monk of Padua (p. 724,) Sabas Malaspina (l. ii. c. 9, p. 308), and Ricordano Malespini (c. 177, p. 999).