Alexander Comyn, Earl of Buchan Scoto-Norman magnate in 13th century Kingdom of Scotland (1300–1289) Parents Marjory, Countess of Buchan William Comyn, Lord of Badenoch Children Alexander Comyn Elena Comyn Elizabeth Comyn Magjory Comyn Agnes Comyn John Comyn, Earl of Buchan William Comyn Siblings Walter Comyn, Lord of Badenoch Lady Idoine Comyn Elizabeth Comyn Jardine Comyn Joan Comyn David Comyn, Lord of Kilbride John Comyn Richard Comyn Partners Elizabeth de Quincy