Castile (Principia Moderni III Map Game)

The Crown of Castile was a medieval and modern state in the Iberian Peninsula that formed in 1230 as a result of the third and definitive union of the crowns and parliaments of the kingdoms of Castile and León upon the accession of the then King Ferdinand III of Castile to the vacant Leonese throne.

History
On the death of Alfonso XI a dynastic conflict started between his sons, the Infantes Peter (Pedro) and Henry, Count of Trastámara, which became entangled in the Hundred Years' War (between England and France). Alfonso XI had married Maria of Portugal with whom he had his heir, the Infante Peter. However, the King also had many illegitimate children with Eleanor of Guzman, among them the above-mentioned Henry, who disputed Peter's right to the throne once the latter became king. In the resulting struggle, in which both brothers claimed to be king, Pedro allied himself with Edward, Prince of Wales, "the Black Prince." In 1367, the Black Prince defeated Henry II's allies at the Battle of Nájera, restoring Pedro's control of the kingdom. The Black Prince, seeing that the king would not reimburse his expenses, left Castile. Henry, who had fled to France, took advantage of the opportunity and recommenced the fight. Henry finally was victorious in 1369 in the Battle of Montiel, in which he had Peter killed. In 1371 the brother of the Black Prince, John of Gaunt, 1st Duke of Lancaster, married Constance, Peter's daughter. In 1386, he claimed the Crown of Castile in the name of his wife, the legitimate heir according to the Cortes de Seville of 1361. He arrived in A Coruña with an army and took the city. He then moved on to occupy Santiago de Compostela, Pontevedra and Vigo. He asked John I, Henry II's son, to give up the throne in favor of Constance. John declined but proposed that his son, the Infante Henry, marry John of Gaunt's daughter Catherine. The proposal was accepted, and the title Prince of Asturias was created for Henry and Catherine. This ended the dynastic conflict, strengthened the House of Trastámara's position and created peace between England and Castile.

Ruling house of Castile
Henry III of Castile

More will come later

Vassals
Granada (page will come eventually)