I'm currently playing the duchy of Flanders which is in the dejure empire of the HRE.
I wanted to increase my sway in france since I am the most powerful duchy so I declare wars against the french king to lower crown authority to autonomous vassals so I could place my people on the counts etc that I have weak claims on. However, after the long and tedious war waged against my king I come to the realization that I CANNOT declare war in france because I am de jure in the empire of HRE. I cannot plot to change the laws as well because I am defacto in the french kingdom. I don't see why the de jure borders are absolute, especially considering the split of charlemagnes empire has my land in the kingdom of the french and it wasn't until the 1500-1600s that the HRE had any power over the low lands.
I wanted to increase my sway in france since I am the most powerful duchy so I declare wars against the french king to lower crown authority to autonomous vassals so I could place my people on the counts etc that I have weak claims on. However, after the long and tedious war waged against my king I come to the realization that I CANNOT declare war in france because I am de jure in the empire of HRE. I cannot plot to change the laws as well because I am defacto in the french kingdom. I don't see why the de jure borders are absolute, especially considering the split of charlemagnes empire has my land in the kingdom of the french and it wasn't until the 1500-1600s that the HRE had any power over the low lands.