Ramon Berenguer IV or V (French: Raimond-Bérenger; 1198 – 19 August 1245) was a member of the House of Barcelona who ruled as count of Provence and Forcalquier.

This small war was one of many rounds intended to more firmly establish control over trade from Italy into France, and Provence included several key routes.

[9] While the Albigensian Crusade worked in his favour against Toulouse, Ramon Berenguer was concerned that its resolution in the Treaty of Paris left him in a precarious position.

Ramon Berenguer and Beatrice travelled with their daughter to Lyon in 1234 to sign the marriage treaty, and then Margaret was escorted to her wedding in Sens by her uncles William and Thomas of Savoy.

Shortly after, William began negotiating on Ramon Berenguer's behalf with Henry III of England to marry his daughter Eleanor.

Ramon Berenguer shrewdly negotiated for that option, offering as consolation a promise to leave her ten thousand marks in his last will.

In 1238, Ramon Berenguer joined his brother-in-law Amadeus IV at the court of Emperor Frederick II in Turin.

Giovanni Villani in his Nuova Cronica said: Count Raymond was a lord of gentle lineage, and kin to them of the house of Aragon, and to the family of the count of Toulouse, By inheritance Provence, this side of the Rhone, was his; a wise and courteous lord was he, and of noble state and virtuous, and in his time did honourable deeds, and to his court came all gentle persons of Provence and of France and of Catalonia, by reason of his courtesy and noble estate, and he made many Provençal coblas and canzoni of great worth.