Before 29 May 1708 Henry Bilson Legge and [his future wife] Mary Stawell 1st Baroness Stawell were married. He the son of William Legge 1st Earl Dartmouth (age 35) and Anne Finch Countess Dartmouth -1751.
In 1717 [his father] Trevor Hill 1st Viscount Hillsborough (age 24) was created 1st Viscount Hillsborough .
On 30 May 1718 Wills Hill 1st Marquess Downshire was born to Trevor Hill 1st Viscount Hillsborough (age 25) at Fairford, Gloucestershire [Map].
On 05 May 1742 [his father] Trevor Hill 1st Viscount Hillsborough (age 49) died.
In 1747 Wills Hill 1st Marquess Downshire (age 28) and Margaretta Fitzgerald were married. She the daughter of Robert Fitzgerald 19th Earl of Kildare 1675-1743 and Mary O'Brien Countess Kildare -1730.
On 16 Aug 1750 [his daughter] Mary Amelia Hill Marchioness Salisbury 1750-1835 was born to Wills Hill 1st Marquess Downshire (age 32) and [his wife] Margaretta Fitzgerald at Dublin [Map].
On 03 Mar 1753 [his son] Arthur Hill 2nd Marquess Downshire 1753-1801 was born to Wills Hill 1st Marquess Downshire (age 34) and [his wife] Margaretta Fitzgerald.
In 1760 [his future wife] Mary Stawell 1st Baroness Stawell (age 34) was created 1st Baron Stawell of Somerton in Somerset. She the daughter of Edward Stawell 4th Baron Stawell.
In 1766 Wills Hill 1st Marquess Downshire (age 47) and Mary Stawell 1st Baroness Stawell (age 40) were married.
On 19 Jan 1766 [his wife] Margaretta Fitzgerald died.
On 02 Dec 1773 [his son-in-law] James Cecil 1st Marquess Salisbury (age 25) and [his daughter] Mary Amelia Hill Marchioness Salisbury 1750-1835 (age 23) were married. She the daughter of Wills Hill 1st Marquess Downshire 1718-1793 (age 55) and Margaretta Fitzgerald.
In 1776 [his son-in-law] John Chetwynd-Talbot 1st Earl Talbot 1749-1793 (age 26) and [his daughter] Charlotte Augusta Hill Countess Talbot were married. She the daughter of Wills Hill 1st Marquess Downshire 1718-1793 (age 57) and Margaretta Fitzgerald.
In 1779 [his step-son] Henry Bilson Legge 2nd Baron Stawell (age 22) and Mary Curzon Baroness Stawell were married.
On 29 Jul 1780 [his wife] Mary Stawell 1st Baroness Stawell (age 55) died. Her son [his step-son] Henry Bilson Legge 2nd Baron Stawell (age 23) succeeded 2nd Baron Stawell of Somerton in Somerset. Mary Curzon Baroness Stawell by marriage Baroness Stawell of Somerton in Somerset.
On 29 Jun 1786 [his son] Arthur Hill 2nd Marquess Downshire 1753-1801 (age 33) and [his daughter-in-law] Mary Sandys Marchioness Downshire (age 22) were married. He the son of Wills Hill 1st Marquess Downshire 1718-1793 (age 68) and Margaretta Fitzgerald.
In 1789 Wills Hill 1st Marquess Downshire (age 70) was created 1st Marquess Downshire.
On 07 Oct 1793 Wills Hill 1st Marquess Downshire (age 75) died. His son [his son] Arthur Hill 2nd Marquess Downshire 1753-1801 (age 40) succeeded 2nd Marquess Downshire. [his daughter-in-law] Mary Sandys Marchioness Downshire (age 29) by marriage Marchioness Downshire.
[his daughter] Charlotte Augusta Hill Countess Talbot was born to Wills Hill 1st Marquess Downshire and Margaretta Fitzgerald in Hanover Square.
Paternal Family Tree: Hill
Great x 4 Grandfather: Robert Hill
Great x 3 Grandfather: Moyses Hill Marshall of Ulster
Great x 2 Grandfather: Arthur Hill
Great x 1 Grandfather: William Hill
GrandFather: Michael Hill
Father: Trevor Hill 1st Viscount Hillsborough
Great x 1 Grandfather: John Trevor Speaker 
GrandMother: Anne Trevor