Background
He was the eldest son of Charles Moore, 1st Marquess of Drogheda, and Lady Anne Seymour Conway, daughter of Francis Seymour, 1st Marquess of Hertford.
He was the eldest son of Charles Moore, 1st Marquess of Drogheda, and Lady Anne Seymour Conway, daughter of Francis Seymour, 1st Marquess of Hertford.
He went insane when he was about twenty, and spent much of his life at the private asylum at Greatford, Lincolnshire founded by the renowned physician Francis Willis. Some sources give his first name as Edward. About the age of twenty he began to show signs of mental illness.
He was elected to the Irish House of Commons as member for Queen"s County in 1790, but unseated the following year on a petition that he was disqualified by insanity.
Despite this, he was given the rank of captain-lieutenant in the Royal Irish Artillery in 1793. Lord Moore"s father was colonel of the regiment.
His treatment involved a regimen of fresh air and manual labour. Whether the treatment had any success in Lord Drogheda"s case is unclear.
He remained at Greatford until his death in 1837.
The cause of his mental illness is unclear, but it may be significant that his mother"s family had a history of eccentricity and mental instability.