Marquess Downshire is in Marquis and Marquess Ireland.
In 1789 Wills Hill 1st Marquess Downshire [aged 70] was created 1st Marquess Downshire.
On 7th October 1793 Wills Hill 1st Marquess Downshire [aged 75] died. His son Arthur [aged 40] succeeded 2nd Marquess Downshire. Mary Sandys Marchioness Downshire [aged 29] by marriage Marchioness Downshire.
On 7th September 1801 Arthur Hill 2nd Marquess Downshire [aged 48] committed suicide suspected to be as a consequence of his political life. His son Arthur [aged 12] succeeded 3rd Marquess Downshire.
In 1811 Arthur Blundell Sandys Trumbull Hill 3rd Marquess Downshire [aged 22] and Maria Windsor Marchioness Downshire [aged 21] were married. She by marriage Marchioness Downshire. She the daughter of Other Windsor 5th Earl Plymouth and Sarah Archer Countess Plymouth and Amherst [aged 49]. He the son of Arthur Hill 2nd Marquess Downshire and Mary Sandys Marchioness Downshire [aged 46]. They were half third cousins.
On 12th September 1845 Arthur Blundell Sandys Trumbull Hill 3rd Marquess Downshire [aged 56] died. His son Arthur [aged 33] succeeded 4th Marquess Downshire. Caroline Stapleton-Cotton Marchioness Downshire [aged 30] by marriage Marchioness Downshire.
On 6th August 1868 Arthur Hill 4th Marquess Downshire [aged 56] died. His son Arthur [aged 23] succeeded 5th Marquess Downshire.
YBcJrZjKOn 31st March 1874 Arthur Hill 5th Marquess Downshire [aged 29] died. His son Arthur [aged 2] succeeded 6th Marquess Downshire.
On 22nd June 1893 Arthur Hill 6th Marquess of Downshire [aged 21] and Katherine Mary "Kitty" Hare Marchioness Downshire [aged 20] were married. She by marriage Marchioness Downshire. He the son of Arthur Hill 5th Marquess Downshire and Georgiana Elizabeth Balfour.
Before 29th May 1918 Arthur Hill 6th Marquess of Downshire [aged 46] and Evelyn Grace Foster Marchioness Downshire were married. She by marriage Marchioness Downshire. He the son of Arthur Hill 5th Marquess Downshire and Georgiana Elizabeth Balfour.
