"some charming Pocahontas"

The story of Pocahontas (1595-1617) was well-known in Britain from the early 17th century.  Pocahontas was a Native American princess who helped settlers in her native land (now part of the US state of Virginia).  She converted to Christianity, took the name Rebecca, and eventually married one of the settlers, John Rolfe.

She is said to have saved the life of an English explorer, Captain John Smith, by intervening when her father was about to execute him.