Source: Ancestry.com. Wiltshire, England: Parish and Probate Records. [database online]
Wiltshire: - Inquisitiones Post Mortem returned to the court of chancery, 1242-1326
Thomas Lambert, esquire. Delivered into Court 9th May, 20 Charles 1st [1644].
Abstracts of the Inquisitiones Post Mortem Relating to Wiltshire, Returned into the High Court of Chancery from the Reign of King Henry 3rd.
Matilda de Bello Campo, Countess of Warwick.
County: Wiltshire
Country: England
Inquisition made before the escheator at Chiriel, 18 May [1301] , 29th Edward 1st, of the lands and tenements which were of Matilda de Bello Campo, formerly Countess of Warwick, on the day that she died, by the oath of Adam Chamberlayn, Gilbert Fynamour, Walter Brudesyert, William Asser, William de .. aseward, Robert de Barevyle, Walter Reymond, Robert le Schetere, Richard atte Forde, William Coych, John Avenel, and Walter Thomas, who say that...
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Source: Ancestry.com. Gloucestershire, England: Parish and Probate Records [database online]
Devon, Cornwall & Gloucester: - Wills and Administrations proved in the Consistory Court of the Bishop of Exeter, 1532 to 1800
Burialls
Abstracts of the Inquisitiones Post Mortem Relating to the County of Gloucester, Returned into the 'High Court of Chancery from the 33rd Year of the Reign of King Edward the Third.
John de Aston.
County: Gloucestershire
Country: England
John de Aston of Gloucester purchased from John Wytheley of Yeuenton, on the Feast of St. John the Baptist, 6 Richard 2nd [ 1382 ], without the King's licence, all the lands which were formerly Ralph Avenel's in Sandhurst; held of the King by sergeanty, paying one mark into the Exchequer yearly at Michaelmas by the hands of the sheriff. They are worth 6d. more.
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Source: The Philips, Weber....of the Pacific Northwest (see source list)
Note: It is interesting that several internet sources give 1 Aug 1359 in Brittany, France as the death date/place of John Avenel. This appears to be the same death date/place which The Magna Charta Sureties gave (in error I believe) to Margery's 1st husband William de Ros. William de Ros died in 1343 according to Ancestral Roots and Burke's Peerage.