Well, Ordulf died. The duke is dead, long live the duke! The new duke of Saxony and Brunswick is Magnus Billund, who's married to duchess Oda the first of Meissen. Basically this means that Magnus' heir (some girl with a ridiculous name) will be duchess of Saxony, Brunswick AND Meissen (which includes two of Saxony's de jure counties). Unfortunately everyone in the realm wants to kill my heir, so I better start looking for a decent spymaster...
In other news, I had fabricated claims on Friesland, but unfortunately Ordulf the claimant died. 100 ducats down the drain
I'm going to try to get the claim again. My plan was to create the duchy of Gelre, so I'd have de jure claims on the county of Gelre. Since Ostfriesland passed to Magnus' kid brother, I'm not sure if creating Gelre will have the effect I was looking for. Worth a try though. Fabricating claims on Koln would mean I can create the duchy of Koln and grab 3 counties (eventually, since I can only get one de jure county for each 10 years of ceasefire...). Getting the duchy of Gelre would be a first step towards the kingdom of Frisia, getting Koln would be a good step towards the kingdom of Germany. Getting Meissen would be a good step towards the kingdom of Pommeralia, but then I have to go heretic as well. I'm not sure how that'll work out... but I doubt it'd work.
I figured that if I become HRE (and why not, with three duchies) I might even grab the de jure territories in Denmark. I can't declare war outside my lieges territory.