In their lifetime
Born in the reign of Henry III
  • Birth
    1216
    Born
  • Year of birth
    28 Oct 1216
    Accession of Henry III
    Reigned 1216–1272
  • Age c. 23
    1239
    Son Robert born
  • Age c. 31
    22 Sep 1247
    Father 4th Earl of Derby William died
  • Age c. 31
    2 Nov 1247
    Mother Agnes (Alice) died
  • Age c. 48
    14 May 1264
    Battle of Lewes
    Simon de Montfort defeats Henry III in Sussex.
  • Age c. 49
    20 Jan 1265
    Simon de Montfort's Parliament meets
  • Age c. 49
    4 Aug 1265
    Battle of Evesham
  • Age c. 56
    20 Nov 1272
    Accession of Edward I
    Reigned 1272–1307
  • Age c. 79
    Nov 1295
    Model Parliament summoned by Edward I