Question: The entrance to the palace which houses the imperial sword is called what?
Sentence (from "Private Apartments of the Winter Palace"): From the ground floor, it can be accessed from the October Staircase, formerly known as His Majesty's Own Staircase; this double-flighted imperial staircase was a secondary entrance to the private apartments, and provided a more convenient route to the palace's ground floor and private entrances than the more formal and ceremonial public route through the state apartments.
Relevant evidence: No