Marianus IV of Arborea

Marianus IV, called the Great, was the Judge (king) of Arborea, kingdom in the island of Sardinia, from 1347 to his death. He was, as his nickname indicates, the greatest sovereign of Arborea. He was a legislator and a warrior whose reign saw the commencement of massive codification of the laws of his realm and incessant warfare with the Crown of Aragon. He was also a religious man, who had connections to Catherine of Siena. He was, in short, a "wise legislator, able politician, and valiant warrior."