Mark Kerr (or Ker), 1st Earl of Lothian (1553 – 8 April 1609) was a Scottish nobleman and politician.
[3] He was the son of Mark Kerr, abbot of Newbattle Abbey, Midlothian, and Helen Leslie, sister of the Earl of Rothes.
[4] Like his father, Mark Kerr was an Extraordinary Lord of Session under king[3] beginning in 1584, with his lands at Newbattle made into a Barony.
In December 1593, Kerr was appointed to a committee to audit the account of money spent by the Chancellor, John Maitland of Thirlestane, on the royal voyages.
[10] The second earl had no sons, and the title passed to his daughter Anne Kerr, Countess of Lothian.