There's a couple that I know of:
https://www.goodreads.com/series/40821-belisarius https://www.goodreads.com/search?q=safehold&qid=
Flint was involved in the Belisarius series (along with David Drake), and Safehold is basically Weber's "reboot" of one of the books in his "Armageddon Moon" series.
If you liked 1632 you will probably like these as they're in a similar vein