Ferdinand I of Portugal

King of Portugal from 1367 to 1383

Ferdinand I, sometimes called the Handsome or occasionally the Inconstant, was the King of Portugal from 1367 until his death in 1383. He was also briefly made King of Galicia, in 1369. Facing a lack of legitimate male heirs, his death led to the 1383–85 crisis, also known as the Portuguese interregnum.

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