The only thing I can find is to complete all quests or suggestions to set quest progression for other quests. It says to visit Maramal in Riften to set up the ceremony. ID Perhaps it was our mutual understanding that there. I'm getting tired of hearing 'you should set up the wedding.blah blah' lol which actually is in my log as a quest too. Side quest The ring may be removed from their inventory if they are followers. The only way I know of to find out the quest's ID was to use this thread.

I was hoping someone could give me something to say: set the quest to the next part automatically or simply set her as already married to me. Open the console by pressing the tilde key (usually found directly under the escape button), enter that command with the relevant quest ID, and it will reset that quest. It won't actually give me a wedding or make her married to me without the ceremony. But the console commands addfac and setrelationship rank just allow the person to be added to the mariagable faction and show the dialogue to ask to get married. Well the part to start the dialogue starts a little quest to wait for the wedding. so, if you can't figure your solution based on what wiki says, the console commands will allow you to marry Illia and skip the ceremony since that is all that's remaining. just saying that the marriage 'quest' isn't a traditional quest in that it doesn't have stages like normal quests (at least not known stages until the creation kit is released).

Skyrim marriage quest id