May 27: The Battle of Shanhai Pass helps bring the Manchu dynasty to power in China for two and a half centuries.
July 1: The Battle of Colberger Heide is fought between Sweden and Denmark-Norway off of the German coast.
July 2: The Battle of Marston Moor gives Parliament control of northern England from King Charles.

1644 (MDCXLIV) was a leap year starting on Friday of the Gregorian calendarand a leap year starting on Monday of the Julian calendar, the 1644th year of the Common Era (CE) and Anno Domini (AD) designations, the 644th year of the 2ndmillennium, the 44th year of the 17thcentury, and the 5th year of the 1640s decade. As of the start of 1644, the Gregorian calendar was 10days ahead of the Julian calendar, which remained in localized use until 1923.

It is one of eight years (CE) to contain each Roman numeral once (1000(M)+500(D)+100(C)+(-10(X)+50(L))+(-1(I)+5(V)) = 1644).

Events

Kolumna Zygmunta erected.

January – March

April – June

July – September

October – December

Date unknown

Births

Thomas Britton
Veit Hans Schnorr von Carolsfeld
Otto Mencke
Henry Winstanley
Henrietta of England

January – March

April – June

July – September

October – December

Date unknown

Deaths

Pope Urban VIII
Johannes Wtenbogaert