The history of the Royal Marines began on 28 October 1664 with the formation of the Duke of York and Albany's Maritime Regiment of Foot soon becoming known as the Admiral's Regiment. During the War of the Spanish Succession the most historic achievement of the Marines was the capture of the mole during the assault on Gibraltar (sailors of the Royal Navy captured the Rock itself) in 1704. On 5 April 1755, His Majesty's Marine Forces, fifty Companies in three Divisions, headquartered at Portsmouth, Chatham and Plymouth, were formed by Order of Council under Admiralty control.