The City of London swords are five two-handed ceremonial swords owned by the City of London, namely the Mourning (or Black) Sword, the Pearl Sword, the State (or Sunday) Sword, the Old Bailey Sword and the Mansion House Justice Room Sword. A sixth sword, the Travelling Sword of State, replaces the Sword of State for visits outside the City. They are part of the plate collection of Mansion House, the official residence of the Lord Mayor of London.