"Ferdinand I (Portuguese: Fernando; 31 October 1345 – 22 October 1383), sometimes called the Handsome (o Formoso) or occasionally the Inconstant (o Inconstante), was the King ...
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of Portugal from 1367 until his death in 1383. His death led to the 1383–85 crisis, also known as the Portuguese interregnum." - (en.wikipedia.org 05.06.2020)
