The Black Jewels Trilogy by Anne Bishop
Publication Date: 2003. Check Availability

This series is not for the squeamish reader; it presents a world rife with gruesome dominance over the male population and the dominion of the magical order called the Blood. Three men, a father and his two estranged sons, conjure their dreams into existence through a young girl, the strongest Queen the Blood have ever known. She must cleanse the Blood of the taint it has developed, but as young as she is, her innocence prevents her from seeing beyond the dreamers' sometimes vicious exteriors to trust them enough to help her. (Amy)