The first documents about Dolia date to 1089, when the bishop Virgilio signed the act of foundation of the monasteries of Saints Giorgio and Genesio, created by the will of Arzone, judge of Cagliari.
At the end of the era of Giudicati, San Pantaleo and Sicci followed different roads: the first one became a fief of Suelli's bishop.
Then, the archbishops of Cagliari, become barons, made San Pantaleo the most important centre of the zone, which exercised its power on the villages of Donori, Serdiana, Sicci, Soleminis, and Ussana.
The small village of Sicci San Biagio, during the Aragonese domination, was transformed into a baronage and assigned to Raimondo De Amburra.
Sicci thenceforth became a fief of the dukes of Mandas y Tellez Giròn de Alcantara, who maintained it until the end of feudalism.