King John IV of Portugal

Events

1

Episodes

2

Years

1641–1642

Every event in Historedia whose sources name King John IV of Portugal, with the role they cite and all of that event’s episodes. This is not a biography, and mentions are grouped by name, so two people with the same name can share this page.

Events and episodes

1. Treaty of Offensive and Defensive Alliance

   1641–1642

   Role: Signatory and Ratifier

   1. 112 June 1641 · The HagueSigning of the Treaty

      Representatives of the Dutch Republic and Portugal signed the alliance treaty at The Hague.

   2. 218 November 1641 to 20 February 1642 · Portugal and the Dutch RepublicRatification of the Treaty

      Portugal and the Dutch Republic formally ratified the treaty in late 1641 and early 1642.

Sources

1. Treaty of The Hague (1641) Wikipedia, revision of 2025-11-27