The reign of John I John I of Castile died in May 1379 Trast mara Henry II was succeeded on the throne of her oldest son Castillo, who would reign as King John I of Castile. Domestic problems arise immediately. We recall that at the beginning of his reign, Henry II had created a circle of relatives addicts (at least in theory) to the Crown to strengthen its position. However, over the years had gradually emerged a new class of nobility official, who would soon begin to displace the relatives of the king in the exercise of leadership positions, and would be the mainstay of the new Trastamara. This situation is not the least pleased with the high nobility, and Alfonso Enriquez, as part of it, he immediately began to prove it. Already in the courts of Burgos the year 1379, the income obtained from the storehouse of Aviles, and in December the same year, the annulment of their marriage.However, in 1380, is John I, which issued a series of regulations aimed at preventing the abuse of the nobility on the manors and parcels to their dependents, among the victims, Count Alfonso, who is forced to return lands taken improperly Cornellana the monasteries and Sahagun. Alfonso Enriquez part then to Portugal, where he tries to obtain the hand of the princess and heiress Beatrice of Portugal, while offering its services to the Duke of Lancaster who married a daughter of Pedro I the Cruel, claimed the crown. In this situation, John I proceeded to confiscate all assets of his brother, while granting to the Bishop of Oviedo, Toledo Gutierrez, plenipotentiary powers in the region. Finally, unsuccessful negotiations, Alfonso Enriquez decided to return to Asturias, where, invoking royal pardon, recover their territories.However, in 1383 we find a new rebellion of Count John I Alfonso forces to go to Asturias, and urgently, as the Count Alfonso Enriquez had offered to the British for help. But the king to act swiftly and soon renders the whole region, with the exception of Gij n, where it hides the rebel, who would again invoking the forgiveness of his brother on July 18 from 1383. After this last revolt, John I decided to confiscate all the possessions of Asturias Alfonso Enriquez, granting to change the title of Count of Valencia de Don Juan, lands more accessible and in which the rebellious count would be much more controllable.In addition, Don Gutierrez gave the lordship of Toledo Nore a in payment for their services and gave his son, the future Henry III, the title Prince of Asturias, with all its dominions thus linked to the crown a number of areas of difficult access and constituted an ideal environment for conspiracy and rebellion, given their isolation and geography. Shortly thereafter, and following the succession of Ferdinand I of Portugal, John I decided to imprison Alfonso Enriquez at Castle Almonacid, with the possibility that this may carry out maneuvers against him. This prison will last for eight years and only the death of the king in the year 1390, Alfonso Enriquez recover their freedom and possessions.
