Lodz is the owner of the city and, in this case, the garrison does not also appear as a besieger. (I've seen it happen.)
I just noticed that the defender of Jihlava is Vannes (Vannes is one of my allies) , but Lodz is shown as the Owner - de jure and de facto on the Powers screen.
I know that Vannes originally took the city from Lodz, but it reverted back at some point.
The same thing happened to me with Wizna.
1) I took the city
2) it reverted back
3) I had trouble re-taking it (the garrison appeared on both sides)
4) I finally re-took the city
5) 2 days after taking the city and 2 political points increasing my influence in the city - it reverted back to Lodz.
Koji
Trying to add images:
Edited by KojiOrphen, 22 June 2016 - 03:03 PM.