1641 in Portugal

Events in the year 1641 in Portugal.

Incumbents

 * King: John IV

Events

 * March 27 - beginning of the 11 month Siege of São Filipe near Angra do Heroismo in the Azores
 * June 12 - Treaty of The Hague (1641) is signed in The Hague representatives of the States-General of the Netherlands and by the ambassador of the Kingdom of Portugal
 * November 18 - John IV ratifies the treaty of The Hague