PrePub - Ascendance of a Bookworm

Well... Hildebrand can't become Zent, but with Sigiswald getting his own duchy and Anastasius being the Zent's first husband, Hildebrand is very likely to become the next Aub of the duchy given to Trauerqual. With him starting mana compression early, he should have an edge over any other potential archduke candidate taken in by his father. And if the small shrines are accessible to him, and have effects similar to what the large shrines did for Rozemyne's schtappe, he might even get his schtappe upgraded to some degree, even if the large shirnes are barred to him. He also has a better grasp of the ancient language than most Yurgenschmidt nobles, which means that he'll be able to read the stuff in the underground archive, which might contain lots of useful information of all kinds.

Alternatively, as an archduke candidate, he could pursuit to become one of Aub Rozemyne's husbands. As a female Aub, she's expected to have three husbands, so even if Ferdinand & Co can force their marriage through, there'd still be two spots open. Though that would mean that Trauerqual would have to find someone outside his family to adopt and make his successor.

Personally I think it would have been better to have Trauerqual become Eglantine's head scholar, or something along those lines, so he can become her advisor. True Zent or not, he managed to hold the country together for more than a decade, so his political experience is surely useful, and it would also make for a good symbol of Eglantine's authority, to have the previous Zent as a retainer.