| Richard Slater Milnes | |
| Birth Date: | December 1759 |
| Death Date: | 2 June 1804 |
| Alma Mater: | University of Glasgow |
| Occupation: | Politician |
| Spouse: | Rachel Busk |
| Children: | 9, including Robert |
| Parents: | Robert Milnes Joyce Slater |
Richard Slater Milnes (December 1759 – 2 June 1804) was an English heir, landowner and politician. The heir to a cloth fortune, he served in the British Parliament, where he championed the abolitionist cause.[1]
Richard Slater Milnes was born in December 1759 to Robert Milnes, a Presbyterian cloth merchant, who he succeeded in 1771. His mother, Joyce, was the daughter of Adam Slater. Milnes graduated from the University of Glasgow in Scotland in 1775.[1]
Milnes was a country gentleman at his Fryston Hall estate in Yorkshire. He served as a Member of Parliament for the City of York in the House of Commons of Great Britain from 1784 to 1790. During his tenure, he gave a speech in favour of the abolition of the slave trade and was a supporter of William Pitt the Younger.[1]
Milnes married Rachel, the daughter of Hans Busk, and had 2 sons and 7 daughters. They resided at Fryston Hall.[1]
Milnes died on 2 June 1804.[1] He was succeeded by his eldest son Robert Pemberton Milneswho also became an MP.