This archive tracks four layers. A record present in 4 of them (HH, AoI, M41, IND) is silent in the rest, and says so.
The Horus HeresyM30–M31
imperium
Flagship of the Lion and the I Legion
The first Gloriana ever built, twenty-eight kilometres of it, and finished to a standard nothing after it matched. Its interior is a deliberate maze — the First Legion did not intend visitors to find their way about — and for part of the Heresy one of those visitors was Konrad Curze, loose in the lower decks and hunting the search parties sent after him.
Position: Macragge System (Macragge) The Lion's flagship at Macragge, where Curze was defeated and chained aboard it again after months loose in its decks Cited in Angels of Caliban
Position: Davin System (Davin) In the combined loyalist fleet trying to break out of the Ruinstorm; Sanguinius came aboard and took the captive Curze away with him, and the ship duelled the daemonship Veritas Ferrum in the battle that followed Cited in Ruinstorm
Age of the ImperiumM32–M40
imperium
[RECORD LOST]
[RECORD LOST]
it survived the Heresy and stayed with the Chapter. Nothing published stations it in this era.
Position in this era: [RECORD LOST].
The 41st Millenniumpre-Rift
imperium
Flagship of the Dark Angels
Still the Chapter's flagship ten thousand years on. Azrael ran the Dark Angels' part of the Siege of the Fenris System from it.
Position: Fenris System (Fenris) Azrael's command vessel for the Dark Angels' part in the Siege of the Fenris System
Era Indomituspost-Rift
imperium
Flagship of the Dark Angels
[RECORD LOST]
Nothing survives in the archive for Era Indomitus.
Position in this era: [RECORD LOST].
Position
A mobile record: it carries a position timeline rather than a fixed point. The archive places it in 2 of the four eras (HH, M41); each era section above carries that era's entry.
Books set here
2 titles in the reading tracker touch this record, 1 of them as a primary location. Titles link out to the tracker.
Every fact in this record, and where it came from. Editorial derivations say so.
classhigh
wh40k.lexicanum.com/wiki/Invincible_Reason 'a Gloriana Class Battleship which served as the flagship of the Dark Angels Legion and later Chapter'; 'the first Gloriana-class vessel to be constructed', 'twenty-eight kilometres from bow to stern'
positionshigh
wh40k.lexicanum.com/wiki/Invincible_Reason §History — the Thramas Crusade and the stranded Curze, Macragge, then Davin in the Ruinstorm; §Post-Heresy for the Siege of the Fenris System
position-m41medium
the Fenris command is stated on the Lexicanum page but cited to a codex rather than to a tracked novel, so the position carries no bookRef. Fenris is named outright in that statement
archetypehigh
catalogue entry 9, first-generation masterwork flagship — the reference tag is this vessel by name, and 'the first Gloriana-class vessel to be constructed' is exactly what the brief describes. The mesh lane did not build entry 9; 'gloriana' is the nearest built family and the class canon states