Aeterni regis
The papal bull Aeterni regis [English: "Eternal king's"] was issued on 21 June 1481 by Pope Sixtus IV. It confirmed the substance of the Treaty of Alcáçovas, reiterating that treaty's confirmation of ...
Turkish Crusade (1481)
The Portuguese expedition to Otranto in 1481, which the Portuguese call the Turkish Crusade (Portuguese: Cruzada Turca), arrived too late to participate in any fighting. On 8 April 1481, Pope Sixt...
Turkish Crusade (1481) - Wikipedia