Ferdinand Wars 1383–1385 Crisis Fernando (or Fernán) Sánchez de Tovar (died 1384) was a Castilian soldier and admiral.

[2][3] In 1381, Sánchez de Tovar returned to the Iberian Peninsula to fight against England's ally, Portugal, and defeated a Portuguese squadron at the Battle of the Saltes Island during the Third Ferdinand War.

In 1382 he travelled to France and joined the army of Charles VI during the siege of Bruges, ruled by the rebel Philip van Artevelde, but he soon returned to Castile.

However, the Master of the Order of Aviz, Ferdinand's bastard brother, John of Avis, also claimed the throne and Castile declared war against him, starting the 1383–1385 crisis.

In this new campaign, Sánchez de Tovar led the Castilian fleet against the Portuguese and took part in the siege of Lisbon, where he died in 1384 from the plague.