Westminster Cathedral
The site on which the cathedral stands in the City of Westminster was purchased by the Diocese of Westminster in 1885, and construction was completed in 1903. Westminster Cathedral is the largest Catholic church building in England and Wales and the seat of the Archbishop of Westminster.
St Margaret's, Westminster
The church was founded in the twelfth century by Benedictine monks, so that local people who lived in the area around the Abbey could worship separately at their own simpler parish church, and historically it was within the hundred of Ossulstone in the county of Middlesex. In 1914, in a preface to "Memorials of St. Margaret's Church, Westminster", a former Rector of St Margaret's, Dr Hensley Henson, reported a mediaeval tradition that the church was as old as Westminster Abbey, owing its origins to the same royal saint, and that "The two churches, conventual and parochial, have stood side by side for more than eight centuries — not, of course, the existing fabrics, but older churches of which the existing fabrics are successors on the same site."