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The Sancta Helena is a modified cargo ship seen in Underworld: Evolution.
Named after his wife, it serves as home to the immortal Lorenz Macaro a.k.a Alexander Corvinus, and as a base of operations for his small army, the Cleaners. Besides Alexander's spacious personal chambers, the ship boasts a command center with state-of-the-art surveillance equipment, a helicopter pad, and an equipped morgue. It is from here that the cleanup of the war between the Vampires and Lycans takes place. Alexander uses the ship to locate points of interest in the war, and to coordinate the removal of bodies before humans can become aware of the existence of the Immortals.
After the events of Underworld, the Cleaners are shown to have brought the corpses of three important figures back to the ship: the Vampire Elder Amelia, the Lycan Lucian, and the Vampire Elder Viktor. When pressed for information banished Vampire historian Andreas Tanis informs the Vampire Selene and her Hybrid lover, Michael Corvin of the ships's location. This is soon also discovered by Alexander's son Marcus Corvinus from Tanis' blood memories.
Most of the Cleaners are killed onboard the Sancta Helena when Marcus Corvinus attacks the ship. After having fought Michael and Selene on the dock outside over the pendant and Selene's blood memories, Marcus argues with Alexander ending with him greviously injuring his father and stealing the remaining key to his brother's prison. Feeling that it is time to die, Alexander has Selene drink his blood so that she can defeat Marcus and his brother. After she and the remaining Cleaners leave, Alexander blows up the ship, committing suicide in the process.
- Inside Alexander's personal chamber is a statue carved in the image of his former wife, Helena Corvinus.