Before Sep 1610 [his father] John Wemyss 1st Earl Wemyss (age 24) and [his mother] Jane Gray Countess Wemyss were married. She a great x 3 granddaughter of King Henry VII of England and Ireland.

In Jul 1625 David Wemyss 2nd Earl Wemyss (age 14) and Anna Balfour were married. He the son of John Wemyss 1st Earl Wemyss (age 39) and Jane Gray Countess Wemyss. He a great x 4 grandson of King Henry VII of England and Ireland.

On 13 Jun 1637 Alexander Leslie (age 26) and [his future wife] Margaret Leslie Countess Buccleuch and Wemyss (age 17) were married. She the daughter of John Leslie 6th Earl Rothes (age 37) and Anne Erskine Countess of Rothes (age 40). He the son of Alexander Leslie 1st Earl Leven (age 57).

On 25 Jul 1646 Francis Scott 2nd Earl Buccleuch (age 19) and [his future wife] Margaret Leslie Countess Buccleuch and Wemyss (age 26) were married. She by marriage Countess Buccleuch. She the daughter of John Leslie 6th Earl Rothes and Anne Erskine Countess of Rothes. He the son of Walter Scott 1st Earl Buccleuch and Mary Hay Countess Buccleuch. They were half third cousins.

In Apr 1650 David Wemyss 2nd Earl Wemyss (age 39) and Helenor Fleming were married. She the daughter of John Fleming 2nd Earl Wigtown and Margaret Livingston Countess Wigtown. He the son of John Wemyss 1st Earl Wemyss and Jane Gray Countess Wemyss. They were half fourth cousins. He a great x 4 grandson of King Henry VII of England and Ireland.

On 13 Jan 1653 David Wemyss 2nd Earl Wemyss (age 42) and Margaret Leslie Countess Buccleuch and Wemyss (age 32) were married. She the daughter of John Leslie 6th Earl Rothes and Anne Erskine Countess of Rothes. He the son of John Wemyss 1st Earl Wemyss and Jane Gray Countess Wemyss. He a great x 4 grandson of King Henry VII of England and Ireland.

On 30 Dec 1656 [his step-son] Alexander Leslie 2nd Earl Leven (age 19) and Margaret Howard Countess Leven (age 21) were married. He the son of Alexander Leslie and Margaret Leslie Countess Buccleuch and Wemyss (age 36).

On 11 Aug 1659 [his son-in-law] George Gordon 15th Earl Sutherland (age 25) and [his daughter] Jean Wemyss Countess Sutherland were married. She the daughter of David Wemyss 2nd Earl Wemyss (age 48) and Anna Balfour. He the son of John Gordon 14th Earl Sutherland (age 50). She a great x 5 granddaughter of King Henry VII of England and Ireland.

On 20 Apr 1663 James Scott 1st Duke Monmouth 1st Duke Buccleuch (age 14) and [his step-daughter] Anne Scott Duchess Monmouth and Buccleuch (age 12) were married. She by marriage Duchess Monmouth. She the daughter of Francis Scott 2nd Earl Buccleuch and Margaret Leslie Countess Buccleuch and Wemyss (age 42). He the illegitmate son of King Charles II of England Scotland and Ireland (age 32) and Lucy Walter.

On 28 Mar 1672 [his son-in-law] James Wemyss 1st Lord Burntisland (age 15) and [his daughter] Margaret Wemyss Countess Cromartie 3rd Countess Wemyss (age 13) were married. She the daughter of David Wemyss 2nd Earl Wemyss (age 61) and Margaret Leslie Countess Buccleuch and Wemyss (age 51). She a great x 5 granddaughter of King Henry VII of England and Ireland.