The story of (2009) serves as a prequel to the first two films, chronicling the origins of the centuries-long blood feud between the aristocratic vampires and the werewolves, known as Lycans. The Birth of a New Species
The central catalyst for the war is the secret romance between and Viktor’s daughter, Sonja (Rhona Mitra). Underworld.Rise.of.the.Lycans.2009.2160p.BluRay...
: Their affair is strictly forbidden, and tensions peak when Lucian removes his restrictive moonshackle collar to save Sonja's life from wild werewolves. The story of (2009) serves as a prequel
: Viktor discovers their relationship and the fact that Sonja is pregnant with a hybrid child by reading her blood memories. : Viktor discovers their relationship and the fact
Set in the Dark Ages (approximately 1402), the film reveals that vampires originally used feral, mindless werewolves as slaves. This changed when a captive werewolf gave birth to a seemingly human child, (played by Michael Sheen), who was the first Lycan—a new breed capable of shifting between human and beast form at will.
: Consumed by disgust at the "pollution" of the vampire bloodline, Viktor sentences his own daughter to death. Lucian is forced to watch as Sonja is burned alive by exposure to sunlight. The Rebellion Underworld: Rise of the Lycans (2009) - Plot - IMDb
The vampire Elder, (Bill Nighy), spared the infant Lucian and raised him as a prized slave, using Lucian's blood to create more Lycans to serve as daytime guardians for the coven. Forbidden Love and Betrayal