not that i'm aware of, but i decided to check on the wiki and
this one is the only result
on my own part, i've never really considered writing a timeline specifically about the Templars, but a background element of one TL i have in mind is basically a reversal of
Assassin's Creed which would focus on the Templars instead; in a separate work entirely, one part of a string of episodic sub-stories within the larger plot would involve two major characters traveling through the Alps in the early 14th century and happening across an aged banker who is actually a Templar, but he's pretty much the last one with no chance of their organization ever coming back (and even then he wouldn't have been an original Templar, just the son or grandson of someone who
actually fought in the Crusades who subscribes to their ideology)