Desiderius, also known as Daufer or Dauferius (born 720 – died 786), was king of the Lombards in northern Italy, ruling from 756 to 774. The Frankish king of renown, Charlemagne, married Desiderius's daughter and subsequently conquered his realm. Desiderius is remembered for this connection to Charlemagne and for being the last Lombard ruler to exercise regional kingship.
Rise to power
Born in Brescia, Desiderius was originally a royal officer, the dux of Tuscia and he became king after the death of Aistulf in 756. At that time, Aistulf's predecessor, Ratchis, left his monastic retreat of Montecassino and tried to seize the kingdom, but Desiderius put his revolt down quickly with the support of Pope Stephen II. At his coronation, Desiderius promised to restore many lost papal towns to the Holy See and even enlarge the Papal State.
By 757, Desiderius began securing his power, taking what historian Walter Goffart terms, "vigorous steps to suppress resistance to himself in the