The Pureblood Princess by Emberly Wyndham

Adelina Gray, having reclaimed her true identity as Nadia Magdalena, is the last surviving scion of Clan Magdalena. Her birth parents met a brutal end at the hands of the man she once called Father, but the mysterious vampire brotherhood refuses to seek justice. With a growing sense of unease, Nadia delves deeper into vampire society and discovers a labyrinth of secrets leading down twisted paths with no clear end.
Meanwhile, her affection for Viscount Theodore Rosetti deepens; however, not everyone is pleased with their burgeoning love, and dark forces conspire to eradicate the Magdalena clan—for good.
Nadia is thrust into a perilous dance, a fight for both her love and her very existence, as she endeavors to untangle the convoluted truths shrouding her lineage, her family’s legacy, and who she truly is.