After Isabella's death, Edmund of Langley married Joan Holland, sister and co-heir of Edmund Holland, 4th Earl of Kent (9 January 1382 – 15 September 1408), with whom his daughter, Constance, had lived as his mistress (see above).
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After the death of her husband she was either betrothed to or lived as the mistress of Edmund Holland, 4th Earl of Kent (9 January 1382 – 15 September 1408), and had a daughter by him, Eleanor Holland (died c. 1459), who married James Tuchet, 5th Baron Audley.
Kent | Holland | University of Kent | James Earl Jones | Edmund Burke | Prince Edward, Earl of Wessex | Louis Mountbatten, 1st Earl Mountbatten of Burma | Herbert Kitchener, 1st Earl Kitchener | Earl | Kent Nagano | Frederick Roberts, 1st Earl Roberts | Kent County Cricket Club | Edmund Spenser | Earl of Derby | Earl Warren | Edmund Hillary | Earl of Pembroke | Clark Kent | Robert Harley, 1st Earl of Oxford and Earl Mortimer | Later... with Jools Holland | Kent State University | Jools Holland | Edmund Wilson | Earl of Warwick | Thomas Wentworth, 1st Earl of Strafford | Edward Smith-Stanley, 14th Earl of Derby | Earl of Shrewsbury | 4th United States Congress | William Pitt, 1st Earl of Chatham | Simon de Montfort, 6th Earl of Leicester |
Edmund Holland, 4th Earl of Kent, who was reportedly betrothed to Constance of York, widow of Thomas le Despenser, 1st Earl of Gloucester, and who married Lucy Visconti, youngest daughter of Bernabò Visconti