In 1669, Prince Giovan Battista Rospigliosi bought the Castles of Gallicano and Colonna along with the whole state of Zagarolo from the Ludovisi family. The following year, by marrying Maria Camilla, niece of Cardinal Lazzaro Pallavicini, he inherited the title, coat of arms and name.On the 29th of March 1729,[…]