Heiliger-Zee (Netherlands War of Independence).
Fought May 23, 1568, between the "Beggars," under Louis of Nassau, and 5,000 veteran Spaniards, under Aremberg. Louis occupied a very strong position on a wooded height, near the monastery of the Holy Lion, his front being protected by a morass crossed by a narrow causeway. The Spanish infantry traversed this to the attack, but were repulsed, and Count Aremberg, leading a charge of horse, in the hope of restoring the day, fell mortally wounded. Upon this the Spaniards broke and fled, having suffered a loss of 1,600 men.