Before 03 Nov 1785 [his father] James Everard Arundell 9th Baron Arundel (age 22) and [his mother] Mary Christina Arundell Baroness Arundel Wardour were married. She by marriage Baroness Arundel of Wardour in Wiltshire. They were first cousin once removed.

On 01 Aug 1825 [his future brother-in-law] Charles Stourton 19th Baron Stourton (age 23) and Mary Lucy Clifford Baroness Stourton (age 25) were married. She a great x 3 granddaughter of King Charles II of England Scotland and Ireland.

On 08 Aug 1826 Henry Benedict Arundell 11th Baron Arundel (age 21) and Lucy Smythe Baroness Arundel Wardour were married. She by marriage Baroness Arundel of Wardour in Wiltshire.

On 05 May 1829 Joseph Thaddeus Dormer 11th Baron Dormer (age 38) and [his future sister-in-law] Elizabeth Anne Tichborne Baroness Dormer were married. She by marriage Baroness Dormer of Wyng in Buckinghamshire.

On 22 Sep 1829 Henry Benedict Arundell 11th Baron Arundel (age 24) and Frances Catherine Tichborne Baroness Arundel were married.

Before 30 Apr 1838 Charles Thomas Talbot (age 55) and [his former sister-in-law] Julia Tichborne were married.

On 19 Jun 1838 Henry Benedict Arundell 11th Baron Arundel (age 33) and Theresa Stourton Baroness Arundel Wardour (age 26) were married. She by marriage Baroness Arundel of Wardour in Wiltshire.

On 28 Oct 1840 Lieutenant-Colonel John Towneley (age 34) and [his former sister-in-law] Lucy Ellen Tichborne were married.

On 17 Apr 1861 [his son-in-law] Alfred Joseph Doughty-Tichborne 11th Baronet (age 21) and [his daughter] Theresa Mary Arundell were married.

On 13 Oct 1862 [his son] John Francis Arundell 12th Baron Arundel (age 30) and [his daughter-in-law] Anne Lucy Errington Baroness Arundel Wardour (age 19) were married. She by marriage Baroness Arundel of Wardour in Wiltshire.