One could hope the independented approach to life of the Roesone people give them the ability to leave the Baron alone when he decides to wed Duchess Tanar
But dont that goes well with followers of the Stormlord?
What I meant is the Baron and the Duchess are followers of the Stormlord and its not a secret that the Baron is a paladin of the Stormlord; hence there might be less surprise in him making for a wedding like this. Arvour is a good lord to his people much concerned with their wellbeing and, as far as I know, not interfeering with their, private, choice of religion respecting that the majority of Roesones people follow Haelyn.
Still IHH is the state faith of Roesone and entitled to respect from the Baron as such; a respect that he has so far given and likely will continue to give. The treaty between state and church while the details is not public knowledge is known partly; The church and state cooperate on many levels which cannot be held completely secret for the people