Millini was born on 9 February 1677 in Rome, Italy.
[1][2] He was related to several cardinals including Antonio Casali, Savo Millini and Giovanni Battista Casali del Drago.
[3] He was promoted to the cardinalate at the request of Empress Maria Theresa of Austria.
[1] He is buried at the Santa Maria del Popolo.
[4] This article about an Italian Catholic cardinal is a stub.