Family and titles

Drummond was the son of Patrick Drummond, 3rd Lord Drummond and Lady Elizabeth Lindsay. He married Jean Kerr, daughter of Sir Robert Kerr, 1st Earl of Roxburghe

Robert Ker, 1st Earl of Roxburghe

Robert Ker, 1st Earl of Roxburghe was a Scottish nobleman. He was the eldest son of William Ker of Cessford , and grandson of Sir Walter Ker of Cessford , who fought against Mary, Queen of Scots, both at Carberry Hill and at Langside.He helped James VI against Bothwell...

 and Mary Maitland, on 28 August 1613. He succeeded to his father's title of 4th Lord Drummond in 1602 and then on 8 December 1611 (by special remainder) to the title of Earl of Perth

Earl of Perth

The title Earl of Perth was created in the Peerage of Scotland in 1605 for James Drummond, 4th Lord Drummond.The Drummond family claim descent from Maurice, son of George, a younger son of King Andrew I of Hungary...

 created for his brother James Drummond (1586–1611).

Children

The second Lord Perth's children were -

• Henry Drummond, born 1 August 1614, died September 1622
• James Drummond, 3rd Earl of Perth, born 1615, died 2 June 1675
• Robert Drummond, born 1618
• Sir John Drummond, born 1620, died June 1678
• Lady Lilias Drummond, born circa 1621, died before 12 January 1663/1643
• Sir William Drummond, later Sir William Ker, 2nd Earl of Roxburghe
  William Ker, 2nd Earl of Roxburghe
  William Ker, 2nd Earl of Roxburghe was the grandson of Robert Ker, 1st Earl of Roxburghe. He was born William Drummond, the youngest son of John Drummond, 2nd Earl of Perth, and Jean Ker, daughter of Robert. On Robert's death in 1650 he had no surviving male heirs, consequently his titles and...
  
  , born 1623, died 2 July 1675
• Lady Jean Drummond, born 1623/24, died 12 January 1663