Answer
Elizabeth's mother was Jacquetta of Luxembourg, daughter of Peter of Luxembourg, Count of Saint-Pol, Conversano, and Brienne, and Margaret of Baux, Countess of Beaufort and Conversano. Jacquetta was a respected noblewoman and held significant influence at the English court during the reign of her husband, Richard, Duke of York. Her noble lineage further enhanced the prestigious heritage of the House of York, strengthening their claim to the English throne.