The Vampire King by Juliette N. Banks

Explicit

Blurb-

Will the vampire king fulfill his deadly promise to his queen? Powerful vampire king, Francis Moretti, travels with his sons to the Yorkshire coast in 1891 where he's confronted by one of the rebels of the race. When Robert Russo throws down an official challenge for the throne, he is unconcerned. He knows his royal blood holds great potency and he will walk away unscathed. He's more concerned about the promise he made to his queen nearly one thousand years ago. The deadline is drawing near and his sons, the Moretti princes, are unaware of the destiny about to catch up with them. Brayden and Vincent Moretti are eager to return home to Castle Moretti, where the season is kicking off, and females are lining up to attend one of their infamous orgies. When the king shares his darkest secret, the two big alpha vampires are in shock. They  ...