Juan Alfonso de la Cerda (1295 – August 7, 1347) was Lord of Gibraleón, Huelva, Real de Manzanares and Deza. He was the son of

Alfonso de la Cerda Alfonso de la Cerda, (Valladolid 1270 - Ávila 1333), called "the Disinherited", was the elder son of Ferdinand de la Cerda and his wife Blanche of France, and was a grandson of Alfonso X of Castile. Alfonso and his brother Fernando were ca ...

, grandson of

Ferdinand de la Cerda Ferdinand is a Germanic name composed of the elements "protection", "peace" (PIE "to love, to make peace") or alternatively "journey, travel", Proto-Germanic , abstract noun from root "to fare, travel" (PIE , "to lead, pass over"), and "co ...

. His mother was Matile of Brienne, daughter of

John I of Brienne, Count of Eu John I of Brienne (died 12 June 1294) was the son of Alphonso of Brienne and Marie de Lusigan. His mother was the heiress of Eu, Seine-Maritime, and he succeeded his father as Count of Eu in 1270. He married Beatrice, the daughter of Guy III, ...

. He married Maria Alfonso de Portugal (illegitimate daughter of King Denis of Portugal). He served under Alfonso XI of Castile in the battle of Gibraltar in 1333. He also took part in the

Siege of Algeciras (1342-1344) The Battle of Algeciras or Siege of Algeciras may refer to: * Siege of Algeciras (1278) * Battle of Algeciras (1278) * Siege of Algeciras (1309) * Siege of Algeciras (1342-1344) * Siege of Algeciras (1369) * Battle of Algeciras (1801) or the ...

, which culminated in the city's surrender in 1344.

References

14th-century Castilians 1347 deaths 1295 births {{spain-noble-stub