See p. 38 of Plantagenet Ancestry: A Study In Colonial And Medieval Families, 2nd Edition (on GoogleBooks)

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Hawise Muscegros

b. 21 December 1276, d. between 1340-1350

Hawise Muscegros was born on 21 December 1276 at Charlton Musgrove, Somerset, England. She was the daughter of Robert de Muscegros, Lord of Hampstead, Aldworth (in Berkshire), Brewham, Charlton Muscegros, Norton and Stowell (in Somerset), Boddington, English Bicknor and Kemerton (in Gloucestershire) by his unknown 1st wife, not his second wife Agnes de Ferrers. (See http://www.medievalgenealogy.org.uk/cp/ferrersofchartley.shtml#p324a)

She first married William de Mortimer, who died in 1297. She then received special dispensation to marry, between 1297-1300, his cousin Sir John de Ferrers, 1st Lord Ferrers (of Chartley), son of Robert de Ferrers, 6th Earl of Derby and Alianor de Bohun. He died c 1312. By 1315, she had remarried (and had her lands confiscated since she had married without the King's permission) John de Bures. According to Plantagenet Ancestry, she died between 1340 and her husband's death in 1350. [I am not certain of the source of the 1375 death provided by Richard Glanville, cited below].

• Richard Glanville-Brown, online <e-mail address>, Richard Glanville-Brown (RR 2, Milton, Ontario, Canada), downloaded 17 August 2005.says she died on 29 June 1375 at age 98 at London, England.

Children by John de Ferrers:

• John de Ferrers died without issue in 1324
• Robert de Ferrers b 1309, marr Margaret 1330 then widow Joan de la Mote bef 1340. He died Aug 1350.
• Pernel (Petronilla) de Ferrers marr c 1330 Richard de Monmouth; she died bef May 1340, no children
• Eleanor de Ferrers marr Thomas de Lathom

Child by John de Bures:

• Katherine marr. Giles de Beauchamp

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see Douglas RIchardson's Plantagenet Ancestry, p. 38, for a long discussion of Hawise de Muscegros (it's on Googlebooks).

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John de Ferrers, 1st Baron Ferrers of Chartley

From Wikipedia, the free encyclopedia

Sometime before 1300, Sir John married Hawise de Muscegros. Hawise was born on 21 Dec 1276 a daughter of Robert de Muscegros. She died about June 1340. The couple had a son Robert who was born in 1309 in Staffordshire and became Robert de Ferrers, 2nd Baron Ferrers of Chartley upon his father's death.

He married Hawyse, niece and heiress of Cecilla de Muscegros, by whom he acquired a great increase in fortune.