March 1, 1644
1644 siege during the Franco-Spanish War
Skirmish between Danes and Dutch in Malacca, 1644
September to November 1644 siege of a castle in North Yorkshire, England
1644 battle in England; part of the First English Civil War
1644 battle between the Polish-Lithuanian Commonwealth and a horde of Crimean Tatars
Battle that took place during the First English Civil War
1644 rebellion in Beijing, China which deposed the Ming dynasty
1644 naval battle of the Danish-Swedish War
1644 battle between Portugal and Spain
1644 battle in China