Mary Spencer

Colonel Mary Spencer, Viscountess of Carslie, also known as "Bloody Mary" due to the Percy Rebellion, is the colonel of the Albion Navy and the illegitimate daughter of the Crown Prince in the novels and manga, which makes her Esther Blanchett's older half-sister. However, as an illegitimate child, Mary is unable to inherit the throne. She is first seen welcoming Esther Blanchett and the Pope to Albion. After the death of Queen Bridget II and the kidnapping of the Pope, Mary realizes she cannot appease the methuselah as the former Queen had done. Colonel Spencer stood on the front lines with the palace guards against Cain Knightlord when he attacks the palace. Many of the guards were killed, and Mary was injured. She stayed loyal to her country and devoted to her duty, by attempting to calm the rebellion until Esther is revealed to be the "Star of Hope" and takes her rightful place as Queen.