Background
He was the son of Orazio Ludovisi, patrician of Bologna and commander-in-chief of the Papal Army (as well as brother of Pope Gregory XV), and Lavinia Albergati.
He was the son of Orazio Ludovisi, patrician of Bologna and commander-in-chief of the Papal Army (as well as brother of Pope Gregory XV), and Lavinia Albergati.
Not to be confused with Cardinal Niccolò Albergati-Ludovisi He was the nephew of later-Cardinal Niccolò Albergati-Ludovisi.
Niccolò was recognized prince in 1634 after paying one million florins. He also inherited his father"s titles, becoming marquis of Populonia and duke of Fiano. He was Spanish viceroy in Aragon (1660–1662) and Sardinia (1662–1664) and in 1657 he was named a Knight of the Order of the Golden Fleece. Niccolò Ludovisi died at Cagliari, and was succeeded in his state by his son Giovan Battista Ludovisi.