Dragons of Arreous (The Dwarf Princess' Dragon Prince)

Four dragon princes fought for the affections of a single special female. Only one won her, but he could not protect her or himself when the assassins came. The remaining brothers are left to pick up the pieces of both their kingdom and their hearts. Years later, still struggling with the hurt, none of them are looking for love. The thing about love, though? It finds you whether you're looking or not, and fate has a way of putting you exactly where you never knew you needed to be.