Before 1735 [his father] John Wynn (age 33) and [his mother] Jane Wynne were married.

On 13 Sep 1766 Thomas Wynn 1st Baron Newborough (age 30) and Catherine Perceval Baroness Newborough were married. She the daughter of John Perceval 2nd Earl Egmont (age 55) and Catherine Cecil Countess Egmont.

On 02 Apr 1781 Andrew Berkeley Drummond (age 25) and [his sister-in-law] Mary Perceval were married. She the daughter of John Perceval 2nd Earl Egmont and Catherine Compton Countess Egmont (age 49).

In 1786 Thomas Wynn 1st Baron Newborough (age 50) and Maria Stella Chiappini Baroness Newborough (age 12) were married at Florence, Italy. She by marriage Baroness Newborough of Newborough in County Wexford. The difference in their ages was 37 years.

On 01 Mar 1787 [his former brother-in-law] Charles George Perceval 1st and 2nd Baron Arden (age 30) and Margaretta Elizabeth Wilson Baroness Arden (age 18) were married. He the son of John Perceval 2nd Earl Egmont and Catherine Compton Countess Egmont.

On 10 Aug 1790 [his former brother-in-law] Spencer Perceval (age 27) and Jane Wilson were married. They had eloped and were married by special license as a consequence of her father not approving of the Marriage. He the son of John Perceval 2nd Earl Egmont and Catherine Compton Countess Egmont.

On 06 Jun 1803 John Freeman-Mitford 1st Baron Redesdale (age 54) and [his former sister-in-law] Frances Perceval Baroness Redesdale were married. She by marriage Baroness Redesdale of Redesdale in Northumberland. She the daughter of John Perceval 2nd Earl Egmont and Catherine Compton Countess Egmont.

On 30 Sep 1805 Thomas Walpole (age 50) and [his former sister-in-law] Margaret Perceval (age 55) were married. She the daughter of John Perceval 2nd Earl Egmont and Catherine Cecil Countess Egmont.

Edward Perceval and Sarah Howarth were married. He the son of John Perceval 2nd Earl Egmont and Catherine Cecil Countess Egmont.

Walter De Winton and Anna Maria Chiappini were married.