Ratchis (Rachis - Raditschs - Radics - Radiks, there are various spellings) was the Duke of Friuli (739-744) and King of the Lombards (744-749). His father was Duke Pemmo. His Roman wife was Tassia. He ruled in peace until he besieged, for reasons unknown, Perugia. Pope Zachary convinced him to lift the siege and he abdicated and entered, with his family, the abbey of Montecassino. After the death of Aistulf in 756, he tried once again to reign over the Lombards, but he was defeated by Desiderius and retired to a cloister.