Atenulf (abbot of Montecassino)

In 999, Atenulf was given as a hostage to Duke Ademar of Spoleto after the latter raided the Principality of Capua on behalf of the Emperor Otto III.

Atenulf's stay in Germany seems to have left an impression: German architectural influence is evident in the buildings he erected while abbot.

[3] On 10 May, they granted the land, mountain and church of Sant'Angelo in Barrea to Atenulf, who commissioned Prior Azzo to restore it, since it had escaped destruction during Muslims raids a century earlier and was still the home of a few monks.

This privilege was granted on order from the Emperor Basil II and was probably designed to draw the abbot and his brother away from their support for the Apulian rebel Melus of Bari.

[11] After the Byzantine victory over Melus at the Battle of Canne in October 1018, some eighty Norman mercenaries escaped and entered the service of the Lombard princes and of the abbot of Montecassino.

[11] Atenulf stationed some of the Normans in the castle (oppidum) of Pignataro Interamna in order to ward off the attacks of the counts of Aquino.

[11] In June 1021, Boioannes instructed the turmarcha Falcus, the inspector (episceptites) of Trani, to hand over all the property seized in and around that city from the rebel Maraldus to the abbot.