Ercole, Marquis of Baux

Prince Ercole, Marquis of Baux (16 December 1623 – 2 August 1651) was a member of the House of Grimaldi. He was the first Monegasque prince and heir apparent to the first Monegasque sovereign prince, Honoré II. Dying at the age of 27, Baux was replaced as heir apparent by his son Louis who succeeded Honoré II.

Marriage
on 4 July 1641 to Maria Aurelia Spinola, a daughter of Luca Spinola, Prince of Molfetta and Pellina Spinola. Spinola was a member of the House of Spinola, a powerful and wealthy family from the Republic of Genoa.

Issue

 * 1) Louis Grimaldi (25 July 1642 – 3 January 1701), Prince of Monaco as Louis I (1660–1701) married Catherine Charlotte de Gramont and had issue.
 * 2) Maria Ippolita Grimaldi (8 May 1644 – 8 October 1694) married Carlo Emanuele Filiberto de Simiane, Prince of Montafia and had issue.
 * 3) Giovanna Maria Grimaldi (born 4 June 1645) married Andrea Imperiali, Prince of Francavilla and had issue.
 * 4) Teresa Maria Grimaldi (4 September 1648 – 20 July 1723) married Sigismondo d'Este, Marquis of San Martino and had issue.