Bloodheir - The Bloodborn Series, #6

After 1000 years of his reign, Dracula has fallen.and Jesper is his heir. Being Dracula's heir has always been a joke, as Jesper Degore never thought he'd actually take the throne in his lifetime. But when Dracula finally falls, Jesper takes the throne, and the transition is anything but peaceful. Soon after his ascension, he finds five armies on his doorstep, threatening to take his crown, including the formidable dark elf army. He only has one choice.
To take the elven princess as his mate or doom his entire kingdom to war and destruction. Alavara Elroris has known nothing but darkness and control, acting as her father's puppet in his quest for power. When the elven king sets his sights on Ichor Knell, she has no choice but to obey. But she never suspected to be attracted to the vampire king, drawn to his good looks despite his cold attitude toward her.
As they grow closer, she fears for his life. Because she can't protect him from her father. And she especially can't protect him from herself.