The Masonic Lodge/Temple is in Covent Garden, ie in Westminster
Otherwise as a two second round up do-able
Also worth pointing out the The Vikings, who William 1 apparently, according to this tho to no one else, built his citadels against, had been been roundly beaten by the Harold that Big Will had topped, oop North, when he did away with Harold Hardrada and the Dane Gelt was destroyed, and thus Danish/Viking control (tho it had long been weak anyway...)
There we go, less than 15 secs to read that