Mark Kerr, 1st Earl of Lothian Scottish nobleman and politician (1553–1609) Parents Lady Helen Leslie Mark Kerr Children Sir William Kerr Lady Lilias Kerr Lady Isabel Kerr Lady Elizabeth Kerr Sir Mark Kerr Lady Margaret Kerr Lady Jean Kerr Lady Janet Kerr Robert Kerr, 2nd Earl of Lothian Siblings Andrew Kerr George Kerr David Seton, 7th of Parbroath William Kerr Marion Seton Catherine Kerr Partners Margaret Maxwell