No worries about the liberty taken, Eluvan. In this case it works out okay. In the future - if you take a liberty that upsets the game I'll tell you ... but I don't really see that coming up very often. So no worries at all.
I've taken a liberty or two. Some things are easy, like making up a company name, or something like that. It's rougher when you're talking about important figures.
Yeah ... things like carriage companies that are very geographically local I don't really care much about as long as they are tasteful. But national figures or shrines or stuff like that I do at least like to be consulted.
Of course, part of the fun of being a player is learning the DM style. Likewise for the DM learning the playing styles of the players, too.