Who could be the Vampire King in 'Harry Potter Vampire King fanfiction'?

It could be a new character created specifically for the fanfiction. Maybe a vampire who has been living in the Forbidden Forest for years and has stayed hidden until some event brings it to Harry's attention.

There are some good ones out there. In these fanfictions, the Vampire King Harry Potter might have a whole new set of allies and enemies. For example, he could form alliances with other magical creatures who are intrigued by his unique status. The stories may also show how Hogwarts would react to having a Vampire King as a student or alumnus.

Well, one interesting concept could be the interaction between the wizarding world of Harry Potter and the vampire lore. Maybe the Vampire King has some unique powers that disrupt the magical balance in Hogwarts. For example, he could have the ability to control certain dark magic that even Voldemort was afraid to touch.

One common theme is power. How Harry's new status as a Vampire King gives him different kinds of power, both in the vampire world and in relation to the wizarding world. Another is identity, as he has to figure out who he is now that he's part vampire.

It could be a former Hogwarts student who was expelled for some misunderstood reason. This person, full of bitterness, decides to make a name for himself in the seedy underbelly of the wizarding world and becomes the 'street king'.

One popular 'Harry Potter Vampire King' slash fanfiction might be 'The Vampire's Mark on Harry'. It often explores unique relationships and adventures in the Harry Potter universe with a vampire - king element. However, finding such fanfictions can be a bit tricky as they are not always mainstream. You can start your search on fanfiction - specific websites like Archive of Our Own or FanFiction.net.

The Vampire King himself is obviously a very popular character. He is often depicted as powerful, mysterious, and alluring.

Perhaps the lost king is a young wizard who was hidden away as a baby because of a dark prophecy. He has the potential to be a great and just ruler. His identity has been kept secret all these years. Harry Potter, being the hero he is, gets involved in the mystery when he notices some strange magical happenings that seem to be related to this lost king. As he digs deeper, he uncovers a web of secrets, spells, and hidden motives among different wizarding factions regarding this lost king.

Perhaps it could be a king from a fictional, magical kingdom that has some connection to the wizarding world. For example, a king from a neighboring magical land who has always been curious about Hogwarts and the magic that Harry wields. He and Harry could meet during some diplomatic mission between their two realms.

Well, without reading the specific fanfiction, it's hard to tell exactly who the king is. It could be an original character created by the author, or perhaps it's a character from another fictional universe that the author has incorporated into the Harry Potter world for this unique plotline.