Major Events
- Jan 29 Sea battle of Reimerswaal - Admiral Boisot beats Spanish fleet
- Feb 9 Louis of Nassau ends siege of Maastricht
- Feb 18 Zeeland falls to Dutch rebels
- Feb 19 Spanish troops plunder Krommenie, Wormerveer & Jisp, Netherlands
- Feb 21 Spanish garrison of Middelburg, Netherlands, surrenders
- Feb 23 France begins 5th "holy war" against Huguenots
- Apr 14 Battle of Mookerheyde: Spanish forces of D'Avila defeat Dutch mercenary force led by Louis of Nassau
- May 30 Henry III follows brother Charles IX as King of France
- May 30 Sea battle at Lillo Belgium (Adolf Van Haemstede vs Louis de Boisot)
- Jun 18 Polish King Hendrik of Anjou secretly leaves Poland
- More 1574 Events