The Skaggs-Files

Anne Neville; married 1st by 18 Oct 1424 1st Duke of Buckingham of the 1444 creation (killed 10 July 1460) and had issue; married 2nd by 25 Nov 1467, as his 2nd wife, 1st Lord (Baron) Mountjoy (died 1 Aug 1474) and died 29 Sep 1480, having had
no issue by her 2nd husband. [Burke's Peerage]

#

He [Walter Blount] married, 2ndly, before 25 November 1467, Anne, widow of Humphrey (STAFFORD), DUKE OF BUCKINGHAM (died 1460), and daughter of Ralph (NEVILLE), EARL OF WESTMORLAND, by Joan DE BEAUFORT, legitimated da. of John of Gaunt. He died
1 August 1474, and was buried in the chapel of the Apostles in the Church of the Grey Friars, London. His widow, by whom he had no issue, and who continued to be known as Duchess of Buckingham, had dower assigned 11 March 1474/5. She died 20
September 1480, and was buried at Pleshey, Essex. [Complete Peerage IX:334-6

# Note:
# Note: Title: Burke's Peerage & Baronetage, 106th Edition, Charles Mosley Editor-in-Chief, 1999
# Note: Page: 17, 2680
# Note: Title: Complete Peerage of England Scotland Ireland Great Britain and the United Kingdom, by G. E Cokayne, Sutton Publishing Ltd, 2000
# Note: Page: IX:336