- Mar 10 English King Charles I dissolves Parliament for the 4th time in his reign, summons new Parliament 11 years later, only to be dissolved after 3 months
- Mar 24 1st game law passed in American colonies, by Virginia
- Apr 14 England and France sign Peace of Susa
- May 3 French huguenot leader Duke De Rohan signs accord with Spain
Peace of Lubeck
May 22 Holy Roman Emperor Ferdinand II and Danish King Christian IV sign the Peace of Lubeck
Surrender of Quebec
Jul 29 French colonist Samuel de Champlain surrenders Montreal to British privateers led by David Kirke after a blockade of the colony
- Aug 26 Cambridge Agreement, Massachusetts Bay Company stockholders agree to emigrate
Siege of 's-Hertogenbosch
Sep 14 Siege of 's-Hertogenbosch: Spanish garrison surrenders to Frederick Henry, Prince of Orange
- Sep 17 Dutch ship Sardam arrives to rescue those shipwrecked on the Batavia, off coast of western Australia, discovering a group led by Jeronimus Cornelisz had murdered 124 of the survivors [1]
- Sep 24 Danish Renaissance Kronborg Castle guarding Øresund Sound, is mostly destroyed in a fire (later rebuilt)
- Sep 24 Jacques Specx appointed governor-general of Dutch-Indies
- Sep 26 The Polish–Lithuanian Commonwealth and Sweden sign the Peace of Altmark, ending the Polish–Swedish War (1626–29)
- Oct 13 Dutch West Indies Co grants religious freedom in West Indies
- Oct 30 King Charles I gives Bahamas to Sir Robert Heath
- Nov 3 Prince Frederick Henry festival in The Hague
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