Editing Ferdinand IV of Castile (section)

==Internal conflicts in Castile and meeting of Grijota (1307–1308)==
In 1307, on the advice of the now reconciled John of Castile and Diego López V de Haro, the King ordered [[Juan Núñez II de Lara]] to leave the Kingdom of Castile and to return the castles of [[Moya, Cuenca|Moya]] and [[Cañete, Cuenca|Cañete]], located in the [[Province of Cuenca]], and that Ferdinand IV had granted him previously. The King went to Palencia, where his mother was, who advised him that, since he had expelled Juan Núñez II de Lara from the Kingdom, if he wished to preserve the respect of the ''ricoshombres'' and the nobility, he should be inflexible. Ferdinand IV then went to [[Tordehumos]], where the rebellious magnate was, and surrounded the town at the end of October 1307, being accompanied by numerous ''ricoshombres'' and the Master of the [[Order of Santiago]] with their troops. Shortly after they were joined by the John of Castile (recently recovered from an illness) and his son, Alfonso de Valencia, with their troops.
[[File:House of Lara COA.svg|250px|thumb|right|Coat of arms of the House of Lara. [[Juan Núñez II de Lara]], chief of the family, rebelled in 1307 against Ferdinand IV.]]
During the siege of Tordehumos, Ferdinand IV received the order of [[Pope Clement V]] to seize the castles and possessions of the [[Knights Templar]], and to keep them in his possession until the pontiff arranged what was to be done with them. At the same time, John of Castile presented to the King a proposal of peace, coming from the besieged ones in Tordehumos, that Ferdinand IV didn't accept. During the siege, the King, having difficulty in paying his troops, sent his wife Queen Constance and their newborn daughter, ''Infanta'' [[Eleanor of Castile (1307–1359)|Eleanor of Castile]] to request a loan in his name to King [[Denis of Portugal]], his father-in-law. At the same time, John of Castile, resentful, advised the monarch to abandon the siege and that he would either finish it or take Íscar, or else he would attend the meeting that Ferdinand IV was to keep with the King of Aragon in [[Tarazona]] in his place. However, the King, suspicious of John of Castile, disavowed his proposals and sought to satisfy him by other means.

Because of the desertions of some ''ricoshombres'', including Alfonso de Valencia, Rodrigo Álvarez de las Asturias and García Fernández de Villamayor, and also because of the illness of the Dowager Queen, who couldn't advise him, Ferdinand IV decided to negotiate with Juan Núñez II de Lara the surrender of the latter. After the capitulation of the town of Tordehumos at the beginning of 1308, Juan Núñez II de Lara promised to surrender all his lands to the King, except those he had in [[La Bureba]] and [[La Rioja (Spain)|La Rioja]], for having them Diego López V de Haro, while paid homage to Ferdinand IV, who signed this agreement without the knowledge of his mother, seriously ill in those moments.

After the siege of Tordehumos, numerous magnates and knights tried to indispose the King with Juan Núñez II de Lara and with John of Castile, telling each of them separately that Ferdinand IV desired the death of both; for this, both allied themselves, fearing that the King desired their deaths, although without the support of Diego López V de Haro. Nevertheless, they were persuaded by María de Molina that Ferdinand IV didn't wish them any bad, something that later was confirmed to them by the own sovereign. However, John of Castile and his companions requested to present their petitions to the Dowager Queen and not to him, to which the sovereign acceded. The claims (presented by the plaintiffs in the called Meeting of [[Grijota]]) were that the sovereign granted the [[merindad]] of Galicia to Rodrigo Álvarez de las Asturias and the merindad of Castile to Fernán Ruiz de Saldaña and the expel from the court of his privates Sancho Sánchez de Velasco, Diego García and Fernán Gómez de Toledo. The demands presented by the magnates were accepted by the monarch.

In 1308, Rodrigo Yáñez, Master of the [[Knights Templar]] in the Kingdom of Castile, surrender to María de Molina the fortresses of the Order in the Kingdom, but the Dowager Queen didn't agree to take them without the consent of her son, which the latter granted. However, the Master didn't deliver the castles to the Dowager Queen, but offered them to the ''Infante'' [[Philip of Castile, Lord of Cabrera and Ribera|Philip of Castile]], brother of Ferdinand IV, to give them to him, with the condition that he asked the King in his name that he could attend the demands of the Templars to the prelates of his Kingdom.

In the Cortes de Burgos in 1308 were also present, besides the King, the Dowager Queen, John of Castile, the ''Infante'' [[Peter of Castile, Lord of Cameros|Peter of Castile]], [[Juan Manuel, Prince of Villena|Juan Manuel of Villena]] and most of the ''ricoshombres'' and magnates. Ferdinand IV tried to put order in the affairs of his domains, as well as to reach a budgetary balance and to reorganize the administration of the Court, while trying to reduce the attributions of John of Castile, aspect this last who proved to be impossible for the monarch.{{Sfn|O'Callaghan Martínez|1986|pp=317–319}}

John of Castile filed suit with ''Infante'' Philip of Castile for the possession of the Templar castles of [[Ponferrada]], [[Alcañices]], [[San Pedro de Latarce]] and [[Haro, La Rioja|Haro]], of which he had appropriated, and which he was forced to hand over to the King, while the Master of the Knights Templar was committed to deliver to Ferdinand IV the castles that still had in his power.