Her Majesty's Royal Palace and Fortress, commonly known as the Tower of London, is a historic castle located in the City of London, London on the north bank of the River Thames. At the fortress's centre lies the White Tower, which was originally conceived as a residence for royalty but has served a host of other functions throughout history, most prominently that of a prison. It is guarded by the Queen's Royal Guard, who are overseen by a constable. Its current and most famous function, however, is the resting place of the British Crown Jewels.
In the 1720s-1730s, the former pirate-turned leader to the British Assassins Edward Kenway secreted in the Tower a cache containing a Shroud of Eden, one of the numerous Pieces of Eden. In 1847, the Prince Consort Albert took the cache and relocated it in the Buckingham Palace vault.
In 1868, the place overrun by men under the command of the British Templar Lucy Thorne to locate a Shroud. At the same time, the Assassin Evie Frye infiltrated the Tower to recover the artifact. Realizing an opportunity, Frye killed the Templars masquerading as Royal Guardsmen, rescued the constable in charge of the Tower garrison and, disguising herself as a prisoner, assassinated Thorne before fleeing as the Royal Guard retook the Tower.
Later the same year, the last Maharaja of Sikh Empire Duleep Singh organized with Evie and her twin brother Jacob Frye the heist of the Koh-i-Noor which was stored in the Tower to send in back in India. During the party, the Templars associated with the British Indian Company infiltrated the place to steal the diamond and framed the Maharaja of the crime. Jacob recovered the jewel before Singh was searched by the guards and handed it to his sister who smuggled the diamond out of the Tower.
In 1916, during World War I, a spy known as the Magpie was a prisoner in the Tower of London. As he was about to reveal the existence of the Assassin Brotherhood, Jacob's grand-daughter Lydia Frye infiltrated the Tower and killed the spy.