[quote=@Gendarme]
[@Aristo] I have a few questions regarding the Ambrusian church and the Fiorentian faith in general. The nuances intrigue me, plus I think it'd be good to know a few basics of the faith.

Does the Fiorentian faith have a holy book? What of commandments? Would the average service look like a regular mass from the time? Are there any sacraments or rites that are clearly laid out?

Moreover I'd like to thank you for working with the map and overall devoting time to this. It's appreciated.

[/quote]

Sorry for replying late! Generally, a Fiorentian mass would look very similar to a Catholic one. There aren't any special ceremonies or rites laid out yet, but you're all free to establish some. I've left it rather open-ended, as I encourage you guys to help build up the setting and stay involved. 
There is a holy scripture, which I'll dub "The Libros." Aesthetically, the Ambrusians are similar to the Greek and Eastern Orthodoxies. Most high-ranking officials wear orange-red robes, and as a result are called "lobsters" as a derogatory name behind closed doors.