Thomas de Furnivall, 1st Baron Furnivall

Thomas married Joan, daughter of Hugh le Despenser and Aliva Bassett, they had the following issue:

• Thomas de Furnivall, married Joane de Verdun, had issue.
• Maud de Furnivall, who married firstly John Marmion and secondly Roger la Zouche.
• Katherine de Furnivall, who married William de Thwenge.
• Eleanor de Furnivall, who married Peter de Mauley, had issue.
• Aline de Furnivall.

He married secondly, married Elizabeth, widow of William de Montagu, she was the daughter of Peter de Montfort and Maud de la Mare, they had no issue.

• Burke, John-Bernard. A Genealogical and Heraldic Dictionary of the Peerages of England, Ireland and Scotland, Extinet, Dormant and in Abeyance. E. Ed. United Kingdom, Henry Colburh, 1846.
• Cokayne, George Edward. The Complete Peerage of England, Scotland, Ireland, Great Britain, and the United Kingdom, Vol. IV (1892).