Grote Mandrenke

Saint Marcellus' flood or Grote Mandrenke (Middle Dutch: "Great Drowning of Men") was a massive southwesterly Atlantic gale (see also European windstorm) which swept across the British Isles, the Netherlands, northern Germany, and Denmark (including Schleswig/Southern Jutland) around 16 January 1362, causing at minimum 25,000 deaths. The storm tide is also called the "Second St. Marcellus flood" because it occurred 16 January, the feast day of St. Marcellus. A previous "First St. Marcellus flood" drowned 36,000 people along the coasts of West Friesland and Groningen on 16 January 1219.