Complex sentence: This strength allowed the centralization of power and an increase of the legal authority of the central State, that was expressed by the creation of the compilations of the laws of the Kingdom referred as the "Ordinations" ("Ordenações").
Split into simpler sentences: This strength allowed the centralization of power and an increase of the legal authority of the central State. One of the expressions of this authority was the creation of the compilations of the laws in use in the Kingdom referred as the "Ordinations" ("Ordenações").