The Order of Our Martyred Lady is one of the Orders Militant of the Adepta Sororitas, or the Sisters of Battle, founded in honour of Saint Katherine by the Ecclesiarch Alexis XXII (the long-lived successor of the great reformer, Sebastian Thor) in the 36th Millennium when the location of the Adepta Sororitas' primary convent was split between Terra and Ophelia VII, creating, among others, the Order of the Bloody Rose. Katherine was regarded as Alicia Dominica's second-in-command. Her order was originally titled the Order of the Fiery Heart, in reference to Katherine's fierce persona, but so deeply did the Battle-Sisters mourn her death that they renamed themselves the Order of Our Martyred Lady, and for many centuries thereafter they wore only black. The red cloth of their livery was later