Initially, the lordship included the towns and cities from the coasts of Elche and the entire territory of the Vinalopó River, extending even to the valley of Ayora and Cofrentes.

Over time it would end up covering a good part of the current provinces of Alicante, Albacete, Murcia, Valencia and Cuenca, representing de facto since its creation a true buffer state between the Crowns of Castile and Aragon.

Less central were the towns of Iniesta, the Land of Jorquera, Hellín, Tobarra, Almansa, Yecla, Sax and Villena, which, despite giving the name to the lordship, was territorially peripheral, although it previously included the cities along Vinalopó river (Sax, Elda, Novelda, Elche).

It was he who would expand the manor and lead it to its period of greatest splendour, acquiring with his possessions an autonomy practically comparable to that of the peninsular kingdoms, playing with its border situation between Castile and Aragon.

This phase of great power and autonomy would lead him to elevate the title to Duchy and even to a lifelong Principality, going so far as to mint his own currency or maintain a personal retinue of more than a thousand knights.