Sir John Grierson of Lag (died 1658) (1623–1658) Parents Sir Robert Grierson of Lag Margaret Murray Children Agnes Grierson Margaret Grierson Robert Grierson of Lag Jean Grierson Issobell Grierson Nicola Grierson Siblings William Grierson of Barquhar Jean Grierson James Grierson of Larglanglie Elizabeth Grierson Agnes Grierson Helen Grierson Robert Grierson Nicholas Grierson Sir Rodger Grierson Margaret Grierson Nicola Grierson Partners Isabel Boyd Jane Fleming