On 17 Jul 1825 [his grandfather] William Beauclerk 8th Duke St Albans 1766-1825 (age 58) died. His son [his father] William Beauclerk 9th Duke St Albans (age 24) succeeded 9th Duke St Albans, 9th Earl Burford, 9th Baron Heddington.
On 16 Jun 1827 [his father] William Beauclerk 9th Duke St Albans (age 26) and (age 49) were married. She by marriage Duchess St Albans. The difference in their ages was 23 years. He the son of William Beauclerk 8th Duke St Albans 1766-1825 and . He a great x 3 grandson of King Charles II of England Scotland and Ireland.
On 29 May 1839 [his father] William Beauclerk 9th Duke St Albans (age 38) and [his mother] (age 21) were married at Church of St Mary the Virgin Harby, Leicestershire. She by marriage Duchess St Albans. William Beauclerk 9th Duke St Albans (age 38) donated a new clock, a bible, a prayer book, and £30 with the rector to be invested for the poor. He the son of William Beauclerk 8th Duke St Albans 1766-1825 and . He a great x 3 grandson of King Charles II of England Scotland and Ireland.
On 15 Apr 1840 William Amelius Aubrey Beauclerk 10th Duke St Albans was born to William Beauclerk 9th Duke St Albans (age 39) and (age 22).
On 27 May 1849 [his father] William Beauclerk 9th Duke St Albans (age 48) died. His son William Amelius Aubrey Beauclerk 10th Duke St Albans (age 9) succeeded 10th Duke St Albans, 10th Earl Burford, 10th Baron Heddington.
On 20 Jun 1867 William Amelius Aubrey Beauclerk 10th Duke St Albans (age 27) and Sybil Mary Grey Duchess St Albans 1848-1871 (age 18) were married. She by marriage Duchess St Albans. He the son of William Beauclerk 9th Duke St Albans and (age 49). They were fourth cousins. He a great x 4 grandson of King Charles II of England Scotland and Ireland. 
On 12 Apr 1869 [his daughter] Louise De Vere Beauclerk was born to William Amelius Aubrey Beauclerk 10th Duke St Albans (age 28) and [his wife] Sybil Mary Grey Duchess St Albans 1848-1871 (age 20).
On 26 Mar 1870 [his son] Charles De Vere Beauclerk 11th Duke St Albans 1870-1934 was born to William Amelius Aubrey Beauclerk 10th Duke St Albans (age 29) and [his wife] Sybil Mary Grey Duchess St Albans 1848-1871 (age 21).
On 21 Aug 1871 [his daughter] Sybil Evelyn De Vere Beauclerk was born to William Amelius Aubrey Beauclerk 10th Duke St Albans (age 31) and [his wife] Sybil Mary Grey Duchess St Albans 1848-1871 (age 22).
On 07 Sep 1871 [his wife] Sybil Mary Grey Duchess St Albans 1848-1871 (age 22) died.
On 03 Jan 1874 William Amelius Aubrey Beauclerk 10th Duke St Albans (age 33) and (age 26) were married at Newtown Anner, County Tipperary. She by marriage Duchess St Albans. He the son of William Beauclerk 9th Duke St Albans and (age 56). He a great x 4 grandson of King Charles II of England Scotland and Ireland.
On 16 Oct 1874 [his son] Osborne De Vere Beauclerk 12th Duke St Albans 1874-1964 was born to William Amelius Aubrey Beauclerk 10th Duke St Albans (age 34) and [his wife] (age 26).
On 20 Jan 1876 [his daughter] Moyra De Vere Beauclerk was born to William Amelius Aubrey Beauclerk 10th Duke St Albans (age 35) and [his wife] (age 28).
On 25 May 1877 [his daughter] Katherine De Vere Beauclerk was born to William Amelius Aubrey Beauclerk 10th Duke St Albans (age 37) and [his wife] (age 29).
On 05 Jul 1878 [his daughter] Alexandra De Vere Beauclerk was born to William Amelius Aubrey Beauclerk 10th Duke St Albans (age 38) and [his wife] (age 30).
On 16 Aug 1883 [his son] William Huddlestone De Vere Beauclerk was born to William Amelius Aubrey Beauclerk 10th Duke St Albans (age 43) and [his wife] (age 35).
On 02 Dec 1893 [his mother] (age 75) died in St Leonards On Sea.
In 1895 [his son-in-law] Richard Frederick Cavendish (age 23) and [his daughter] Moyra De Vere Beauclerk (age 18) were married. She the daughter of William Amelius Aubrey Beauclerk 10th Duke St Albans 1840-1898 (age 54) and (age 47). She a great x 5 granddaughter of King Charles II of England Scotland and Ireland. 
On 23 Jan 1896 [his son-in-law] Henry Charles Augustus Fitzroy (age 21) and [his daughter] Katherine De Vere Beauclerk (age 18) were married. She the daughter of William Amelius Aubrey Beauclerk 10th Duke St Albans 1840-1898 (age 55) and (age 48). She a great x 5 granddaughter of King Charles II of England Scotland and Ireland. 
On 10 May 1898 William Amelius Aubrey Beauclerk 10th Duke St Albans (age 58) died. On His son [his son] Charles De Vere Beauclerk 11th Duke St Albans 1870-1934 (age 28) succeeded 11th Duke St Albans, 11th Earl Burford, 11th Baron Heddington.
William Macdonnell and Louisa Grey Countess of Antrim were married.
Paternal Family Tree: Stewart
Kings Wessex: Great x 23 Grand Son of King Edmund "Ironside" I of England
Kings Gwynedd: Great x 20 Grand Son of Owain "Great" King Gwynedd 1100-1170
Kings Seisyllwg: Great x 25 Grand Son of Hywel "Dda aka Good" King Seisyllwg King Deheubarth
Kings Powys: Great x 21 Grand Son of Maredudd ap Bleddyn King Powys 1047-1132
Kings England: Great x 4 Grand Son of King Charles II of England Scotland and Ireland
Kings Scotland: Great x 16 Grand Son of Robert "The Bruce" I King Scotland
Kings Franks: Great x 19 Grand Son of Louis VII King Franks
Kings France: Great x 6 Grand Son of Henry IV King France
Great x 4 Grandfather: King Charles II of England Scotland and Ireland Son of King Charles I of England, Scotland and Ireland
Great x 3 Grandfather: Charles Beauclerk 1st Duke St Albans Son of King Charles II of England Scotland and Ireland
Great x 4 Grandmother: Nell Gwyn
Great x 2 Grandfather: Vere Beauclerk 1st Baron de Vere Grand Son of King Charles II of England Scotland and Ireland
Great x 4 Grandfather: Aubrey de Vere 20th Earl of Oxford
9 x Great Grand Son of King Edward "Longshanks" I of England
Great x 3 Grandmother: Diana Vere Duchess St Albans 1679-1742 10 x Great Grand Daughter of King Edward "Longshanks" I of England
Great x 4 Grandmother: Diana Kirke Countess of Oxford
Great x 1 Grandfather: Aubrey Beauclerk 5th Duke St Albans 1740-1802 Great Grand Son of King Charles II of England Scotland and Ireland
Great x 3 Grandfather: Thomas Chambers
Great x 2 Grandmother: Mary Chambers Baroness Spencer 10 x Great Grand Daughter of King Edward III of England
Great x 4 Grandfather: Charles Berkeley 2nd Earl Berkeley
8 x Great Grand Son of King Edward III of England
Great x 3 Grandmother: Mary Berkeley 9 x Great Grand Daughter of King Edward III of England
Great x 4 Grandmother: Elizabeth Noel Countess Berkeley 1654-1719
GrandFather: William Beauclerk 8th Duke St Albans 1766-1825 2 x Great Grand Son of King Charles II of England Scotland and Ireland
Great x 4 Grandfather: William Ponsonby 1st Viscount Duncannon
10 x Great Grand Son of King Edward "Longshanks" I of England
Great x 3 Grandfather: Brabazon Ponsonby 1st Earl Bessborough 1679-1758 11 x Great Grand Son of King Edward "Longshanks" I of England
Great x 4 Grandmother: Mary Moore
Great x 2 Grandfather: William Ponsonby 2nd Earl Bessborough 12 x Great Grand Son of King Edward "Longshanks" I of England
Great x 4 Grandfather: John Margetson
Great x 3 Grandmother: Sarah Margetson 13 x Great Grand Daughter of King Edward "Longshanks" I of England
Great x 4 Grandmother: Alice Caulfeild Baroness Carpenter 12 x Great Grand Daughter of King Edward "Longshanks" I of England
Great x 1 Grandmother: Catherine Ponsonby Duchess St Albans 1742-1789 12 x Great Grand Daughter of Henry IV King England
Great x 4 Grandfather: William Cavendish 2nd Duke Devonshire 10 x Great Grand Son of King Edward III of England
Great x 3 Grandfather: William Cavendish 3rd Duke Devonshire 10 x Great Grand Son of Henry IV King England
Great x 4 Grandmother: Rachel Russell Duchess Devonshire 1674-1725
9 x Great Grand Daughter of Henry IV King England
Great x 2 Grandmother: Caroline Cavendish Countess Bessborough 1719-1760 11 x Great Grand Daughter of Henry IV King England
Father: William Beauclerk 9th Duke St Albans 3 x Great Grand Son of King Charles II of England Scotland and Ireland
William Amelius Aubrey Beauclerk 10th Duke St Albans 1840-1898 4 x Great Grand Son of King Charles II of England Scotland and Ireland