Whothe sibling Orders of the Adepta Sororitas (any two mustering as one Convent)
Termsmap-level muster: when two or more Sororitas Houses hold adjacent worlds, they may declare a combined Convent — shared non-aggression and a shared objective against a third faction; the Bloody Rose brings the penitent charge, the breaker of lines, into the ground the siblings' fire and strike have prepared
Not every bond is a rivalry. When two or more Orders of the Adepta Sororitas hold adjacent worlds, they may muster as one Convent — a shared oath of non-aggression and a common objective turned against a third faction. The Bloody Rose brings what its siblings cannot: the penitent charge, the breaker of lines, loosed into ground the Martyred Lady's fire and the Argent Shroud's strike have already prepared. Where the gunline pins and the Seraphim harry, the penitents run in and end it. It is no fixed pairing but a muster of the moment — three Orders, one faith, one enemy — and for as long as it holds, the Convent fights as a single body with the charge at its heart.
The Ordo Hereticus Requisitionalliance
Whothe chamber militant of the Ordo Hereticus (requisitions the penitent bodies from this House by reference)
Termssingle-source-of-truth requisition: the Ordo Hereticus may requisition Sisters Repentia, Arco-flagellants, and Penitent Engines/Mortifiers from this House for a phase-gated Inquisitorial purge; the requisition flag and master accord live on the anchor Order (the Martyred Lady) — this House is the home the penitent muscle is drawn from, cross-referenced not duplicated; in exchange the Ordo marks an Excommunicate for the host to run down, a standing campaign feud with heresy rather than a fixed rival House
The Bloody Rose is the home of the penitent bodies the Ordo Hereticus draws upon — its Sisters Repentia, its Arco-flagellants, its Penitent Engines and Mortifiers. When the chamber militant calls a purge, it may requisition that penitent muscle from this Order for a phase-gated Inquisitorial hunt; the standing accord and its master terms are kept by the anchor Order, and here the bodies are lent by reference, never re-mustered. In return the Ordo marks an Excommunicate for the host to run down — a standing feud with heresy itself rather than a fixed rival gang. The Order that redeems sinners through death is a natural instrument of the Inquisition's wrath, and the two make ready use of one another.