[@Not Fishing] I like the concept. You've clearly not designed him as a uniform Chlotar but rather a more morally ambiguous and shrewd politician, not so much a warring banner-man. Only thing really bothering me is the names lacking any... 'Germanic flare'. Darius and Gareth don't strike me as sounding particularly Chlotar. It could be explained away by them being from a different part of Chlotaringen, perhaps territory that had once been Celesean, making Darius' family a blend of barbarian and Celesean cultures.
After all, the Chlotars aren't a single race but rather a confederacy of various different tribes and barbarian ethnicities, and even a few Celesean ones deeper south.

Oh, a chronological technicality, but I still ought to bring it up: 
Cauroman has only been King for a year. I imagine most of the stuff described in Darius' sheet would have taken place under the reign of King Carlovech instead.

If you are fine with making him a 'southern-Chlotar', Darius is fine. Though if you want him to be more traditional Chlotar, consider a name change.

Otherwise approved!