With emperor dlc, you have to wait for the imperial incident. It has definitely changed it, but I'm not sure how Though not sure if the new update made changes to the event. This does mean losing the potential Imperial authority.png Imperial Authority bonus from adding those provinces normally. Thus, Austria can take some or all of the provinces with vassals or PUs, without needing to hold them directly to add them to the HRE as normal. This decision adds the emperor's (& subjects') Italian provinces to the HRE immediately, and prevents the Shadow Kingdom event forever. The Rein in Northern Italy decision allows some extra flexibility in achieving this goal. If all these provinces are in the HRE from 1490 to 1550, the event cannot fire. Preventing the Shadow Kingdom event requires adding eight more provinces to the HRE: Venice's, Treviso, Friuli, and Verona, Urbino, and The Papal State's Ancona, Romagna, Umbria, and Roma.
Originally posted by Keaton:From the Wiki - chapter Rein in Northern Italy
