On 19 Jul 1764 Richard Grosvenor 1st Earl Grosvenor and Henrietta Vernon were married
In 1769 Richard Grosvenor 1st Earl Grosvenor brought an action against Henry Hanover 1st Duke Cumberland and Strathearn for having criminal conversation with Richard's wife Henrietta Vernon having been discovered in flagrante delicto and was awarded damages of £10,000 and £3000 costs.
In 1777 Richard Grosvenor 1st Earl Grosvenor was elected as Fellow of the Royal Society
Father: Robert Grosvenor
Mother: Jane Warre
GrandFather: John Warre