From the Wikipedia page, for which see more detail 
Shoreditch (St Leonard) was an ancient parish in the county of Middlesex. It was both a civil parish, used for administrative purposes, and an ecclesiastical parish of the Church of England. The parish church is St Leonard's, Shoreditch, often simply called "Shoreditch Church".
The civil parish was within the Ossulstone hundred and, from the 17th century, the Tower division. It was entrusted with various administrative functions from the 17th century. In 1837 it became a Poor Law parish, with its own workhouse. The vestry also had responsibility for highways and burials. In 1855 the parish was included in the area of the Metropolitan Board of Works, and the vestry elected two members of the board. In 1889 the parish was included in the new County of London, and in 1899 the civil vestry were dissolved, and the parish became the Metropolitan Borough of Shoreditch.
The civil parish covered 648 acres (262 ha).