Denkjewel wrote that on that day the Alkmaar Liberation of 1573 was commemorated, during the Eighty Years' War. According to Denkjewel, the Spanish troops led by Alva's son Don Frederik had already been repelled three weeks earlier and had to finally retreat, soaked, after breaching the dikes. https://t.co/rc6W7ztT34 #AlkmaarsOntzet #TachtigjarigeOorlog #geschiedenis (translated)