Board Thread:Questions and Answers/@comment-109.146.62.106-20161209160319/@comment-2600:1:931D:7890:49A5:E8E4:346:5205-20170813222812

This is because, Mika was turned into a vampire by krul, making him a noble. To be considered royalty or a progenitor among the vampires, you have to descent from a line of other monarch vampired, and since mika is former human.