Little is more scandalous for the daughter of a Renaissance shopkeeper than selling her body—unless it is selling her words. Jollande Carlet knows publishing her poems will compromise her reputation. She never imagines it will imperil her life.
Capitalizing on talent and connections, Jollande creates one of the foremost literary circles in cultured Lyon. She is determined to see her poems into print as a tribute to her mother, whose unpublished verse vanished at the time of her death. But before Jollande can complete her manuscript, marriage removes her to a provincial backwater. When her husband dies defending her honor at knife point, Jollande destroys her poems.
She returns to Lyon to find the family business in the grip of her father’s associate, a Genoan with undisclosed ties to her mother and unmistakable designs on Jollande herself. As she counters Marsilio’s ploys, concern for her brother and friends, converted to Calvinism during her absence, thrusts her into a world of covert conventicles and smuggled books. Sparring with the new typesetter at her godfather’s printing shop revives her castigated muse, but this unconvincing heretic’s coziness with the city guard makes her question his every claim. As the personal attacks that plague her broaden into a threat that endangers her family, the press, and the conventicle, Jollande must decide how much she is willing to sacrifice for her art.
You have two different plot threads here but I don't see the link. You've painted the bad guys in very general terms so it's hard to get a sense of the depth of the conflict.
By leading with the poem motif, you've made that seem like the plot of the novel when in the second paragraph it looks like saving the family business is.
Start with her return to Lyon, unable/unwilling to write. Focus.