Jon/Margaery(?) fic set in Dragonstone
I've recently gotten back into Jon/Margaery fics and after reading [Dragonstone by Danivat](https://archiveofourown.org/works/8165489/chapters/18711182) and [Alone in the World by Narea](https://archiveofourown.org/works/54879991/chapters/139111585) I was reminded of another Jon on Dragonstone fic.
Jon is made the Lord of Dragonstone and I'm like 90% certain he gets with Margaery. I remember he had issues with his vassals not accepting him, there's on in particular that gives him problems, the Celtigars I believe. There's a scene where Jon has them all gathered in a throne(?) room and he orders them to kneel and ends up killing (?) the head of the family.
Margaery also has troubles with her ladies-in-waiting. They don't respect her and cause a number of issues when it comes to her running the household.
I also remember they have kids and the babes have Targaryen features, which confirms for Jon that Ashara Dayne was his mother. Yet, all the other lords look at the child and start connecting dots. They start making plans to get Jon on the throne. Could be mixing this part up with others, but I believe Jon and Margaery have multiple kids.
Fairly certain I read this on AO3, so any help in tracking this down would be appreciated!
Edit: I remembered some more details. This fic also had Jon choosing a new name and the issue with the Celtigar’s was the castellan was a Celtigar and they stole money (?) I remember a scene where the tax collector’s were harassing the small folk and Jon confronted them.