Winthrop, founded in 1630, is one of the country's oldest settlements. It was named after John Winthrop, a Massachusetts governor, and John's son, Deane Winthrop's, mansion, which was completed in 1637, is now a historic monument and museum. The house has six rooms on the first floor and two more on the second floor. It was built as a "townhouse" for the Wintons to live in while they managed their land. The family was very wealthy at that time; they owned slaves and had interests in shipping and mining too! Winthrop is located in South King County near the border with Washington State. It is part of the Seattle metropolitan area. The population of Winthrop is about 5,000 people. There are many famous people from Winthrop including actors Jeff Bridges, Bill Moseley, and Mary Kay Place; musicians Stevie Nicks and Tom Petty; and football players Tony Dorsett and Steve Young. This was to distinguish it from another New Winthrop, which was four miles away, that had been established several years before by a group of Puritans who had moved down from Connecticut.