Have you seen
Septentrionalis D20 in 17th Century America
A great historic fantasy site imho.
I actually came across it while looking for a Alvin Maker type setting (Orson Scott Cards Colonial America setting where minor magical knacks and hexes are real which I thought would be a wonderful setting)
I also once helped design and played in a campaign based on 'Solomon Kane'
In that setting the Grand Inquistior had become Pope, and all of Souther Europe was held under the Inquistions rule. In the Church only a small inner sanctum had any knowledge of Magic and arcane magic was declared satanic.
Cromwell had survived and his Protectorate had expanded to dominate Northern France. However Llyonness had risen off the coast of Scotland and the Sidhe (Fey and Elves) had returned to the new land of Calendonia (formerly Scotland, Ireland and Llyoness). The protectorate and the Seelie Courts still battle along the border marches
Magic users had been driven eastward into Liberal Prussia and Austria and further into Vampire ruled Eastern Europe.
The Ottoman Empire ruled Turkey and much of Araby, Africa and Central Asia. However they were not Islamic and so Djinni and Gargoyles still held much influence there.
Further East Khitai was a mysterious land and many strange beasts (gryphons, manticore, giants) were yet encountered along the silk road.
America was still mainly unexplored with a few coastal colonies, although more established cities had been built in the Caribbean allowing for much Bucaneer and Voodoo adventuring
it was fun...