Before 1803 [his father] John Thomas Capell (age 33) and [his mother] Caroline Paget (age 29) were married. She the daughter of [his grandfather] Henry Bayly-Paget 1st Earl Uxbridge (age 58) and [his grandmother] Jane Champagné Countess Uxbridge (age 60). He the son of [his grandfather] William Anne Capell 4th Earl Essex and [his grandmother] Harriet Bladen Countess Essex (age 67).

On 14 Jul 1825 Arthur Algernon Capell 6th Earl Essex (age 22) and Caroline Janetta Beauclerk Countess Essex (age 21) were married. She by marriage Countess Essex. She the daughter of William Beauclerk 8th Duke St Albans (age 58) and Maria Janetta Nelthorpe Duchess St Albans. She a great x 3 granddaughter of King Charles II of England Scotland and Ireland.

On 16 Jun 1827 [his brother-in-law] William Beauclerk 9th Duke St Albans (age 26) and Harriet Mellon Duchess St Albans (age 49) were married. She by marriage Duchess St Albans. The difference in their ages was 23 years; she, unusually, being older than him. He the son of [his father-in-law] William Beauclerk 8th Duke St Albans and Maria Janetta Nelthorpe Duchess St Albans. He a great x 3 grandson of King Charles II of England Scotland and Ireland.

On 29 May 1839 [his brother-in-law] William Beauclerk 9th Duke St Albans (age 38) and Elizabeth Catherine Gubbins Duchess St Albans (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 donated a new clock, a bible, a prayer book, and £30 with the rector to be invested for the poor. He the son of [his father-in-law] William Beauclerk 8th Duke St Albans and Maria Janetta Nelthorpe Duchess St Albans. He a great x 3 grandson of King Charles II of England Scotland and Ireland.

In 1853 [his son] Arthur de Vere Capell (age 26) and [his daughter-in-law] Emma Martha Meux (age 31) were married. He the son of Arthur Algernon Capell 6th Earl Essex (age 49) and [his wife] Caroline Janetta Beauclerk Countess Essex (age 48). He a great x 4 grandson of King Charles II of England Scotland and Ireland.

On 06 Feb 1861 General George Augustus Frederick Paget (age 42) and [his future wife] Louisa Elizabeth Heneage Countess Essex were married. He the son of [his uncle] Henry William Paget 1st Marquess Anglesey and Charlotte Cadogan Marchioness Anglesey. They were first cousin once removed. She a great x 5 granddaughter of King Charles II of England Scotland and Ireland.

On 03 Jun 1863 Arthur Algernon Capell 6th Earl Essex (age 60) and Louisa Caroline Elizabeth Boyle Countess Essex were married. She by marriage Countess Essex.

On 03 Jun 1863 Arthur Algernon Capell 6th Earl Essex (age 60) and Louisa Elizabeth Heneage Countess Essex were married. She by marriage Countess Essex. They were first cousin once removed. She a great x 5 granddaughter of King Charles II of England Scotland and Ireland.