"I will die when the Emperor is ready to accept my soul, and not a moment before."

The Order of Our Martyred Lady is one of the major 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 Our Martyred Lady.

Of all the Orders Militant, there are none more numerous or more widely spread than the Order of Our Martyred Lady. Their name is known by the ruling elites and unwashed masses alike on countless worlds across the galaxy, and when spoken evokes hope in the righteous and fear amongst the faithless.

The order is renowned for its unrelenting pursuit of those who defy the Emperor by doing harm to His Imperium and its citizens. Xenos, marauders, Chaos armies and heretical cults are met with burning fury by the Sisters of Our Martyred Lady, who gather wherever the enemy is found to scour them from existence.

The Order of Our Martyred Lady holds fortified sanctuaries on a great many Imperial worlds, many of which date back to Saint Katherine's Wars of Faith. Some of these sanctuaries operate in relative isolation, existing far beyond the established boundaries of the order's parish, but the majority are located in the Segmentum Obscurus.

The broad distribution of the order's preceptories has seen the sisters of the Order of Our Martyred Lady engage in many of the Imperium's most gruelling war zones. On Armageddon, the sisters amassed to defend the Sanctorum of Saint Katherine against the Ork hordes of Ghazghkull Thraka.

Though fully half of their number were martyred, they inflicted such casualties on their enemies that vital greenskin forces were drawn away from other battlefronts, the sheer grit of the sisters enticing Orks from far and wide to join the siege.

The order also fought on Cadia during the 13th Black Crusade of Abaddon the Despoiler. Though the planet eventually fell, the faith held by those who battled there led to a great miracle, with Saint Celestine appearing from the Warp to bolster the defenders in their darkest hour.

Although the Great Rift now divides many of the order's sanctuaries, the sisters of Our Martyred Lady have not relented in their quest to avenge the Imperium's fallen heroes. They stand dauntless against the Chaos forces that pour from newly opened Warp Storms, and they march out to annihilate any foe that would prey upon Humanity's beleaguered defenders.

The fire of their spirit is a beacon of hope, a sign that even in this time of abounding horror, the Emperor has not abandoned His faithful servants.