The origins of the Asmundo family are quite ancient and lost in legend. According to some sources, originating from Pisa, also known as Sismondo or Sismondi since the time of Charlemagne, the family would have arrived in Sicily at the time of the Norman conquest by Count Roger. In this case, they would be connected with the Pisan Sismondi family, mentioned by Dante Alighieri in the "Divine Comedy", which included Sigismondo, who became Prior of the Republic of Pisa in 774, and the legendary heroine Kinzica de' Sismondi. Others think they originated from Malta and moved to Sicily at the time of the Sicilian Vespers. Their lineage may be descended from the Asmunds, kings of Sweden before the year 1000.