Lamberto, Lord of Monaco diplomacy and the sword with equal talent". He also established the Grimaldi motto "With God's help." He and Claudine had at least six children; Lamberto, Lord of Monaco Lamberto Grimaldi (c. 1420 – March 1494) was Lord of Monaco from 16 March 1458. He was married to his cousin Claudine Grimaldi in 1465 to secure the Grimaldi inheritance of Monaco that by the small state's constitution could only pass to male heirs. Lamberto was of the branch of the Grimaldi family which had settled in Antibes while Claudine was of the more powerful Monaco branch. Lamberto assumed the reins of
Prince's Palace of Monaco heiress of Cardinal Mazarin. Thus Monaco's ruling family acquired all the estates bequeathed by Cardinal Mazarin, including the Duchy of Rethel, and the Principality of Château-Porcien. Honoré III was a soldier who fought at both Fontenoy and Rocourt. He was happy to leave Monaco to be governed by others, most notably a former tutor. It was on one of Honoré III's rare visits to the palace in 1767 that illness forced Edward, Duke of York, to land at Monaco. The sick duke was allocated the state bedchamber where he promptly died. Since that date the room has been known as