 Complete the following phrase:  In 592 Pope Gregory I appealed to the Exarch for help in assisting Naples, then under Lombard attack, but Romanus thought it more prudent to remain in central Italy. The Pope was forced to make peace with the Duchy of Spoleto to save Naples. Shortly afterwards, the Lombards occupied Perugia, causing Romanus to send an army to retake Umbria. The Lombard King Agilulf, noticing this, crossed into central Italy and even threatened Rome. Frustrated with the lack of support he received from the Exarch R.A. Markus describes him as a large thorn in Gregorys side, the Pope tried to circumvent Romanus authority by appealing to the Byzantine Emperor Maurice in 595, but this proved fruitless, given the fact that Maurice saw more value in maintaining a link between Ravenna and the Balkans, where he 