In cooperation with Burkhart-san I was able to successfully perform a memorial service for that ancient dragon. Although I called it memorial service, it didn’t change the fact that it was a subjugation and extermination. Because I purified it with Holy magic and thus stopped its activity. Had a member of the church joined in, he would likely have called it memorial service.
I had to use vast amounts of mana to cast the Holy magic in accordance to suspend the activity of the undead ancient dragon. In the end, only the bones and the huge magic core remained.
Although it was the same case like a tiger leaving its splendid fur behind, the little difference in what remained was the outrageous price of the items when talking about this matter, I think?