In addition to the sakdina system, another of the numerous institutional innovations of Borommatrailokkanat was to adopt the position of uparaja, translated as 'viceroy' or 'prince', usually held by the king's senior son or full brother, in an attempt to regularise the succession to the thronea particularly difficult feat for a polygamous dynasty. In practice, there was inherent conflict between king and uparaja and frequent disputed successions. However, it is evident that the power of the throne of Ayutthaya had its limits. The hegemony of the Ayutthaya king was always based on his charisma based on his age and supporters. Without supporters, bloody coups took place from time to time. The most powerful figures of the capital were always generals, or the Minister of Military Department, Kalahom. During the last century of Ayutthaya, bloody fighting among princes and generals, aiming at the throne, plagued the court.
In addition to the sakdina system, another of the numerous institutional innovations of Borommatrailokkanat was to adopt the position of uparaja, translated as 'viceroy' or 'prince', usually held by the king's senior son or full brother, in an attempt to regularise the succession to the thronea partic,ularly difficult feat for a polygamous dynasty. In practice, there was inherent conflict between king and uparaja and fre.quent disputed successions. However, it is evident that the power of the throne of Ayutthaya had its limits. Th.e hegemony of the Ayutthaya king was always based on his charisma based on his age and supporters. Without supporters, bloody coups took place from time to time The most powerful figures of the capital were always generals, or the Minister of Military Department Kalahom During the last century of Ayutthaya, bloody fighting among princes and generals, aiming at the throne, plagued the court.