Infante João, Duke of Valencia de Campos
Son of Peter I of Portugal and Ines de Castro · Historical Figures · Lived 1349 to 1397 · aged 48
John of Portugal, occasionally surnamed Castro, was the eldest surviving son of King Peter I of Portugal by his mistress Inês de Castro. He was a potential but unsuccessful contender for the Portuguese throne during the 1383-85 crisis of succession.
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