Charles the Good, Count of Flanders was murdered in March 1127 by local enemies.
Louis VI of France, overlord of Flanders in this period, installed, by means of an invasion, Charles' cousin (and a pretender to the
Duchy of Normandy)
William Clito as heir, in preference to another of Charles' cousins
Thierry of Alsace, a grandson of
Robert I, Count of Flanders (r. 1071–1093). Thierry had the support of the English King
Henry I who was also
Duke of Normandy and an uncle to William Clito. Additional military forces came from the cities, augmented by men from Ypres which first secretly and then openly supported Thierry. Galbert does not mention the exact location of this battle in his chronicle but Simon van Gent, the abbot of the
abbey of Saint Bertin in Saint-Omer, mentions in his chronicle
Gesta abbatum S. Bertini Sithiensium that this battle took place in the territory of Axspoele:
"Post multa decem milia malorum, cum valida manu armatorum, in campo Hackespul, Willelmus et Theodericus ad prelium conveniunt, fugatoque Theoderico cum suis, Willelmo cessit victoria; sed in brevi victorie usus est leticia". The 1531 chronicle
Dits die Excellente Chronijcke van Vlaenderen gives a brief account of the battle. ==Battle ==