Deaths on May 10

Johan Banér, Swedish field marshal (b. 1596)

Johan Banér (23 June 1596 – 10 May 1641) was a Swedish Field Marshal in the Thirty Years' War.

11 Mar

Battle of Mbororé
Guaraní forces living in the Jesuit reductions defeat bandeirantes loyal to the Portuguese Empire at the Battle of Mbororé in present-day Panambí, Argentina.
23 Oct

Irish Rebellion of 1641
Irish Catholic gentry from Ulster tried to seize control of Dublin Castle, the seat of English rule in Ireland, to force concessions to Catholics.
24 Oct

Irish Rebellion of 1641
Sir Felim O'Neill of Kinard the leader of the Irish Rebellion issues his Proclamation of Dungannon justifying the uprising and declaring continued loyalty to Charles I