Chatham Strait face; Xhaak, Center. The southern part of the strait was named Ensenada del Principe in 1775 by Juan Francisco de la Bodega y Quadra. In 1786 La Perouse gave it the name Tschirikow Bay, and in 1789 the fur trader James Colnett named it Christian Sound. Other early fur traders called it Menzies Strait. It received its present name in 1794 when George Vancouver named it Chatham Strait in honor of William Pitt, 1st Earl of Chatham. Chatham Sound, farther south in British Columbia, was named by Vancouver for his son John Pitt, 2nd Earl of Chatham, whose brother William
Duke of Argyll Morvern, and Tiree" for his services to William of Orange. His son, the 2nd Duke, was created Baron Chatham and Earl of Greenwich in 1705 as a reward for his support for the Act of Union and further elevated to the title Duke of Greenwich in 1719. Upon his death his Scottish titles passed to his brother and the English titles became extinct. The 5th Duke sat as a member of parliament for Glasgow until his father's accession to the Dukedom in 1761 disqualified him from representing a Scottish seat. He then became the member for Dover until 1766, when