William Colyear, 3rd Earl of Portmore

William Charles Colyear, 3rd Earl of Portmore (1745 – 1823) was a British peer, styled Viscount Milsington until 1785.

He was the second but only surviving son of Charles Colyear, 2nd Earl of Portmore, and his wife Juliana.

[3] Like his father the earl,[4] Viscount Milsington was a racehorse owner; he and his wife were regular racegoers.

Their children included: The deaths of the couple's two daughters, Lady Mary and Lady Julia, in Bath, within three hours of one another[8] on the same day in 1800, were the subject of a poem by Mary Young Sewell.

[9] He died in London in 1823 and was succeeded by his son Thomas Charles Colyear, 4th Earl of Portmore.