Sara Grierson Peerage person ID=257857 (1596–1633) Parents Nicola Maxwell Sir William Grierson, 9th of Lag Children John Fergusson Sarah Fergusson Nicholas Fergusson Robert Fergusson, 12th of Craigdarroch Siblings Lancelot Grierson John Grierson Isabel Grierson Agnes Grierson Helena Grierson Sir James Grierson Alexander Grierson Sir Robert Grierson of Lag