Siege of Calais (1436)
There was also an incursion in the Duke's territories by an English force of 2,000 men, who defeated 1,500 Flemish soldiers under Jean II de Croÿ in the Boulonnais.He first conquered some smaller English strongholds, like Oye castle (where he hanged part of the garrison), Sangatte and Balinghem.In June he started the siege of Calais, supported by large numbers of Flemish and Picard militia.When a fleet under Admiral John of Horne failed to block the harbor of Calais by sinking five to six ships laden with stone, the Flemish army started to disintegrate.The fatalities included Guy of Burgundy, Lord of Kruibeke, a son of John the Fearless and his mistress Marguerite de Borsele, and Philip the Good's half brother.