Tyburn Gallows.—No. 49. Connaught Square, is built on the spot where this celebrated gallows stood; and, in the lease granted by the Bishop of London, this is particularly mentioned.
From: NOTES UPON CUNNINGHAM'S HANDBOOK FOR LONDON (1850) (http://www.gutenberg.org/files/11575/11575-h/11575-h.htm)
William Blake: http://books.google.com/books?id=-dNYOOfvjsEC&pg=PA149&lpg=PA149&dq=tyburn+blake&source=bl&ots=lshvnYRYSE&sig=jMcFOM1PXcoOcfSp7dW_cisUqaQ&hl=en&ei=tQQqTKDwLZCQjAeF3bDuDA&sa=X&oi=book_result&ct=result&resnum=5&ved=0CCkQ6AEwBA#v=onepage&q=tyburn blake&f=false
Who give themselves, in Golgotha, Victims to Justice; where
There is in Albion a Gate of precious stones and gold
Seen only by Emanations, by vegetations viewless,
Bending across the road of Oxford Street; it from Hyde Park
To Tyburns deathful shades, admits the wandering souls
Of multitudes who die from Earth: this Gate cannot be found (Jerusalem)
Tyburn brook flows past the gallows into the westbourne in the serpentine: see http://diamondgeezer.blogspot.com/2010_01_01_archive.html
[London used to have two Tyburn rivers. The main river ran from Hampstead to Westminster, and I'll be covering that in copious detail later in the year. And then there was the Tyburn Brook, a minor stream entirely unconnected to its namesake, and which trickled unassumingly through Hyde Park. Which makes it a tributary of the Westbourne, and that's why I'm following it here.]
The description of Tyburn (John Taylor): http://www.unc.edu/~charliem/taylor.htm
The first recorded execution took place at a site next to the stream in 1196. William Fitz Osbern, the populist leader of the poor of London was cornered in the church of St Mary le Bow. He was dragged naked behind a horse to Tyburn, where he was hanged. (from: http://en.wikipedia.org/wiki/Tyburn#cite_note-3)
He (Albion) sat by Tyburn's brook, and underneath his heel shot up
A deadly Tree: he nam'd it Moral Virtue and the Law
Of God who dwells in Chaos hidden from the human sight.
(from another source: the Germanic Pagan God Tiw was the God of Law - who gave his name to Tues-day (and to Tyburn - the place where the word of the law is executed).
And close to Connaught Square we find: Albion Street, Albion Mews, Albion Cl.
… an unmarked pre-Roman monolith which was situated at Tyburn
Oswald's Stone was earthed over in 1819, but dug up three years later because of its presumed historical significance. Later in the 19th century it was to be found leaning against Marble Arch following its move. In 1869, shortly after an archaeological journal published an article about it, the stone disappeared and it has not been identified since. (from: http://en.wikipedia.org/wiki/Ossulstone)
From 1485, a permanent scaffold stood on Tower Hill, whose marked location can be seen as you walk by the underground station.
“Today, the original location is overlooked by a riverside pub called the Captain Kidd.” from below.
See also: http://www.unc.edu/~charliem/docs.htm