The Despenser War - (1321–22)
The Despenser War was fought in Sir John de Botetourt's later years. It concluded 2 years after his death. John Botetourt was a key figure in the dealings with the Despenser's, being a Lord Ordainer and contemperary of Pembroke and Hereford.
Sir John was one of the signatories on the Boulogne Agreement along with Pembroke and Hereford
Wikipedia says:
Hugh Despenser the Younger
There is a connection between Botetourt and Hugh Despenser the Younger. Mentions in Inquisitions Post Mortem regarding the disposition of manors and land indicate this. Both Hugh Despenser the Younger and John Botetourt fought in the Battle of Boroughbridge.
Hugh Despenser the Younger is connected to the de Clare family and also Elizabeth de Burgh, Eleanor de Clare was the oldest daughter of Gilbert, 7th Earl. Eleanor de Clare was the spouse of Hugh Despenser the Younger, m.1306. Hugh fought the Despenser War in 1321/22.
The disposition of manors of Kerbrok in 1320 botetourt_legacy.html
IPMs should not be viewed as Last Wills and Testiments. The assignment of land was more to do with who carried favour with the monarch and against those that the monarch wanted to sensure. Hugh Despenser was one such that Edward II wanted to avenge for taking up with Thomas Lancaster. Botetourt fought on the Despenser and Lancaster side at Boroughbridge, but was pardoned and fined £1,000.