John Borthwick, 5th Lord Borthwick Peerage person ID=137566 (1520–1566) Parents William Borthwick, 4th Lord Borthwick Margaret Hay Children Mariota Borthwick Isobell Borthwick Margaret Borthwick William Borthwick, 6th Lord Borthwick Siblings Catherine Borthwick Thomas Borthwick, Master of Borthwick Margaret Borthwick Janet Borthwick Partners Isobel Lindsay