Queen Britannia

The Queen Britannia (クイーンブリタニア号) was a luxury cruise ship and floating fortress, formerly used by the British Royal Family.

Appearance
The Queen Britannia was a grey ship about 200 meters long and 3 stories high (about 9 meters from waterline to the deck), looking like a combination of a luxury cruise ship and a warship. The decagonal heliport which acted as the central temple was located at the aft of the vessel.

Background
The Queen Britannia served and protected the British Royal Family for many years, and the princesses have numerous childhood memories from their time on the ship (including wrestling in the large beds, sneaking into the kitchen to swipe food, and in Carissa's case, secretly handling an expensive violin as a pretend sword).

After being decommissioned, the ship was moored in a harbour in Edinburgh as one of its major tourist attractions. As forcefully dismantling the ship might have resulted in a rebound which could have blown away half the country, it was instead intended that the mental noise from the thoughts of the many ignorant tourists would gradually neutralize the magical symbols over time, though it was estimated that the process would take over 1200 years.

Coronzon Arc
At some point prior to the events at Edinburgh Castle, Coronzon (in her guise as Archbishop Lola Stuart) had made arrangements for the Queen Britannia to be moved from its mooring in Edinburgh. When the ship arrived at, Coronzon hijacked the ship, swiftly removing the people onboard, who didn't know how to activate the ship's defenses, within 30 seconds. Turning on the magical defenses, which soon shot down several Anaconda cruise missiles fired at it at around 10 AM, Coronzon accessed the central temple and prepared it for use together with the stolen Honours of Scotland and Stone of Scone in the Ceremony of Mo Athair.

While the Queen Britannia was passing south of the at 11 AM, heading for the optimum point for ceremony and due to arrive at noon, the British forces froze the surface of the  in order to slow it slightly and to provide a foothold for them to attack the ship. In the battle, the Scottish royal treasures were used in conjunction with the ship's temple to fire a barrage of 400,000 shots per volley against the attackers. At the end of the battle, the ship was bisected from within by a beam unleashed by the entity within Kamijou Touma, which emerged after Imagine Breaker was severed. It subsequently sank in the half hour following noon. As the ship had many antiques and works of art onboard, it was expected that professional divers would soon search the wreck on the sea floor.