William Lockhart of Lee English diplomat (1621–1675) Parents Martha Douglas Elder Sir James Lockhart of Lee Children Cromwell Lockhart, 12th of the Lee James Lockhart Martha Lockhart John Lockhart, 14th of the Lee Robina Lockhart Richard Lockhart, 13th of the Lee Siblings George Lockhart Anne Lockhart of Tarbrax John Lockhart unknown daughter Lockhart Robert Lockhart Partners Margaret Hamilton Robina Sewster