On 27 Feb 1748 [her father] Peter Burrell (age 23) and [her mother] Elizabeth Lewis were married.
On 19 Dec 1750 Isabella Susan Burrell Countess Beverley was born to Peter Burrell (age 26) and Elizabeth Lewis.
On 08 Jun 1775 Algernon Percy 1st Earl Beverley (age 25) and Isabella Susan Burrell Countess Beverley (age 24) were married at Syon House [Map]. He the son of Hugh Percy 1st Duke Northumberland (age 59) and Elizabeth Seymour Duchess Northumberland (age 58).
On 06 Nov 1775 [her father] Peter Burrell (age 51) died.
In 1776 [her daughter] Charlotte Percy Countess Ashburham 1776-1862 was born to [her husband] Algernon Percy 1st Earl Beverley (age 25) and Isabella Susan Burrell Countess Beverley (age 25).
In 1777 [her daughter] Elizabeth Percy was born to [her husband] Algernon Percy 1st Earl Beverley (age 26) and Isabella Susan Burrell Countess Beverley (age 26).
On 22 Jun 1778 [her son] George Percy 5th Duke Northumberland 1778-1867 was born to [her husband] Algernon Percy 1st Earl Beverley (age 28) and Isabella Susan Burrell Countess Beverley (age 27).
In 1779 [her son] Algernon Percy was born to [her husband] Algernon Percy 1st Earl Beverley (age 28) and Isabella Susan Burrell Countess Beverley (age 28).
In 1779 [her daughter] Elizabeth Percy (age 2) died. She was buried at Northumberland Vault, Crypt, Westminster Abbey.
In 1782 [her daughter] Susanna Percy was born to [her husband] Algernon Percy 1st Earl Beverley (age 31) and Isabella Susan Burrell Countess Beverley (age 31).
In 1784 [her son] Josceline Percy was born to [her husband] Algernon Percy 1st Earl Beverley (age 33) and Isabella Susan Burrell Countess Beverley (age 33).
On 29 Jan 1784 [her son] Bishop Hugh Percy 1784-1856 was born to [her husband] Algernon Percy 1st Earl Beverley (age 34) and Isabella Susan Burrell Countess Beverley (age 33).
In 1785 [her son] Henry Percy was born to [her husband] Algernon Percy 1st Earl Beverley (age 34) and Isabella Susan Burrell Countess Beverley (age 34).
In 1786 [her daughter] Emily Charlotte Percy was born to [her husband] Algernon Percy 1st Earl Beverley (age 35) and Isabella Susan Burrell Countess Beverley (age 35).
In 1788 [her son] William Henry Percy was born to [her husband] Algernon Percy 1st Earl Beverley (age 37) and Isabella Susan Burrell Countess Beverley (age 37).
In 1790 [her husband] Algernon Percy 1st Earl Beverley (age 39) was created 1st Earl Beverley. Isabella Susan Burrell Countess Beverley (age 39) by marriage Countess Beverley.
In 1794 [her son] Charles Greatheed Bertie Percy was born to [her husband] Algernon Percy 1st Earl Beverley (age 43) and Isabella Susan Burrell Countess Beverley (age 43).
On 25 Jul 1795 [her son-in-law] George Ashburnham 3rd Earl Ashburnham (age 34) and [her daughter] Charlotte Percy Countess Ashburham 1776-1862 (age 19) were married. She the daughter of Algernon Percy 1st Earl Beverley (age 45) and Isabella Susan Burrell Countess Beverley 1750-1812 (age 44). He the son of John Ashburnham 2nd Earl Ashburnham 1724-1812 (age 70) and .
In 1796 [her daughter] Louisa Margaret Percy was born to [her husband] Algernon Percy 1st Earl Beverley (age 45) and Isabella Susan Burrell Countess Beverley (age 45).
In 1796 [her daughter] Louisa Margaret Percy died. She was buried at Northumberland Vault, Crypt, Westminster Abbey.
On 22 Jun 1801 [her son] George Percy 5th Duke Northumberland 1778-1867 (age 23) and [her daughter-in-law] Louisa Harcourt Stuart-Wortley-Mackenzie (age 19) were married. He the son of Algernon Percy 1st Earl Beverley (age 51) and Isabella Susan Burrell Countess Beverley 1750-1812 (age 50).
In 1812 [her son] Francis John Percy died.
On 24 Jan 1812 Isabella Susan Burrell Countess Beverley (age 61) died. She was buried in the Northumberland Vault, Crypt, Westminster Abbey.
On 21 Oct 1830 [her former husband] Algernon Percy 1st Earl Beverley (age 80) died. His son [her son] George Percy 5th Duke Northumberland 1778-1867 (age 52) succeeded 2nd Earl Beverley.
[her son] Francis John Percy was born to Algernon Percy 1st Earl Beverley and Isabella Susan Burrell Countess Beverley.
[her son] Algernon Percy and Anna Maria Fitzgerald were married. He the son of Algernon Percy 1st Earl Beverley and Isabella Susan Burrell Countess Beverley 1750-1812. She a great x 3 granddaughter of King Charles II of England Scotland and Ireland. 
Paternal Family Tree: Burrell
Maternal Family Tree: Elizabeth Lewis
GrandFather: Peter Burrell
Father: Peter Burrell
Great x 2 Grandfather: John Raymond
Great x 1 Grandfather: Hugh Raymond
GrandMother: Amy Raymond
Isabella Susan Burrell Countess Beverley 1750-1812
GrandFather: John Lewis
Mother: Elizabeth Lewis