Alahis had also rebelled during the reign of Perctarit, but it was Cunipert who, according to Paul the Deacon in the Historia Langobardorum, had persuaded his father to show mercy.

It was thus soon after Perctarit's death that Alahis forced Cunipert to flee to Isola Comacina, an island in the middle of Lake Como.

The only extant record of the rule of Alahis is contained in Book V of Paul the Deacon's Historia Langobardorum.

Having lost the support of the Church and, crucially, of the 'people' (notably the brothers Aldo and Grauso of Brescia), Cunipert was able to return to Pavia and resume control.

Cunipert suppressed other insurrections during his reign, including that of the usurper Duke Ansfrid of Friuli.