Girolamo Grimaldi-Cavalleroni (20 August 1597– 4 November 1685) was an Italian cardinal of the Roman Catholic Church and Archbishop of Aix.

[2] As a young man he enlisted as a soldier and fought for the Holy Roman Empire in Germany during the Thirty Years' War.

In the summer of 1649 he dealt strongly with an insurrection between two groups of monks, having the protesters driven from the monasteries without waiting for the permission of the Pope to arrive from Rome.

Grimaldi was also a patron of the writer Jean Cabassut the French theologian and priest who accompanied him to Rome, and it was Grimaldi who encouraged Cabassut to enlarge his work "Notitia Conciliorum" and publish it under the title "Notitia ecclesiastica historiarum, conciliorum et canonum invicem collatorum" in 1680.

[6] During his incumbency of the archbishopric over a twenty-year period he built an episcopal palace at vast expense in the town of Puyricard, which is today known as the Château Grimaldi.