Jacques I was Prince of Monaco from 1731 to 1733. He was also Duke of Valentinois from 1716 until 1733, and Count of Thorigny. For ten months preceding his regency, he had served as prince consort to his wife, Princess Louise Hippolyte.
- Occupation
- regent, consort
- Position held
- Prince of Monaco
- Citizenship
- Republic of Genoa
- Born
- November 21, 1689
- Died
- April 23, 1751