User blog comment:B214/Volume 23 discussion blog/@comment-87.9.174.130-20170319005919/@comment-10330822-20170319122622

That doesn't really matter, because Ravel being Issei's Bishop still proves his point.

Purebloods can serve in peerages and hold pieces, just like Ravel does as a Bishop. One just would almost consider it a waste in some regards because she's already a devil.