Hey guys,
i am not so new to TW in general and TW Attila, but in Medieval Kingdoms 1212. When i started a HRE campaign, i noticed my Ruler is excommunicated. This leads to every single nation in my surrounding to declare war on me. Begins 2 or 3 rounds after campaign start and from then on nearly every single round another nation joins in. Too much to beat in battle at least.

So any tips for a HRE run?