My novel of course is Edward Ware Thrillers in ancient Rome. I even have a map plot. The hero, who is supposedly a distant ancestor of later day Edward Ware, is fighting the Germans just as Edward was to do years later. In a far fetched way it seems as if he is fighting ancient Nazis which is ridiculous. The more things change the more they remain the same. As the author of The Most Dangerous Book said (the stuff about Tacitus's Germania) the "German question" is older than you think.