Sibyl Montagu

✓ Sibyl, daughter of William Montagu, Earl of Salisbury; m. before July 1349 Sir Edmund de Arundel (I99520); named with him in the papal indult of July 1364. As Edmund's only recorded wife, married before Philippe's birth, she is wired as Philippe's mother. Source: Complete Peerage 2nd ed. vol. I (1910), 'Arundel' pp.242-244 and notes (archive.org completepeerageo01coka), read 27 Oct 2026. [DIRECT ANCESTOR OF THE COMPILER: flag added 27 Oct 2026 by walking the tree from Aynsley, so that this marker is reliable and can be searched.]