I've been trying to keep track of which city was the capital of Castile between, say, 1300 and 1500 but wiki is vague as hell. To clarify, by "capital" I mean which city the Royal Court was established. I know it changed between Burgos, Valladolid, Toledo and Madrid during that period but there are no precise dates given and the fact that the Cortes ("parliament") convened in Madrid on several occasions during those periods when Madrid was not the capital only make matters more confusing.
There was a bureaucracy/administration to move along with the court, I don't think they changed that often even if the King was frequently on trips all over the Kingdom. From what I could surmise during the Reconquista they gradually moved from Burgos, to Valladolid, to Toledo and finally settled on Madrid. I just can't find any sort of precise dates like I can for the Portuguese court/capital changes from Guimaraes to Coimbra and to Lisbon.
Can anyone give me a more precise timeline of the Capital city changes in Castile?
Well, the court was itinerant and the Cortes could be celebrated pretty much anywhere, even in Cuéllar. All in all, I'd say the kingdom did not have a single capital (note that Castilla León is still the only autonomous community that doesn't have a fixed capital to this day). Hence the ambiguity.
First of all, it was not a single kingdom. All those Castilian kings were not only kings of Castile, but also of León, Galicia, Seville, Cordoba, Jaén, etc. These were seen as separate realms and had what would be considered their own, largely ceremonial, 'capital' cities. Burgos was thought of as the traditional capital of Castile, Caput Castellae, and Castile was considered the dominant realm. This position was strengthened by the new coronation rite, introduced by Alfonso XI in 1332, that saw the new king travel to Compostella first to knight himself at the altar of Santiago and then be anointed and crown himself in the royal monastery of Las Huelgas right outside of Burgos.
Yet Toledo, notionally in the eponymous kingdom (until 1833), saw itself as the capital of 'all Spain' (totius Hispaniae), as it had been the centre of Visigothic Spain and the whole Castilian imperial project was heavily based on the idea of a restoration of the Visigothic order. From the 14th century onwards we have records of conflicts between the representatives of Burgos and Toledo over who should be the first to speak at the Cortes based on their respective primacy in Castile and 'Spain'. (The very same Alfonso XI was the first to resolve this claiming that he had spoken for Toledo so now it was the turn of Burgos. All of this is based on later chronicles, though.)
Due to its symbolism Toledo was probably the closest the Crown lands came to having a capital. But the question is sort of moot until central administration bodies emerge. The earliest I can think of would be the Royal Audiencia and Chancellery which was sort of a Supreme Court. It was created in 1371 as an itinerant body but in the 1440s becomes fixed in Valladolid, making it arguably the judicial capital of all the Crown realms.