MARYLEBONE, ST., commonly MARYLEBONE bon), a north-western metropolitan borough of London, bounded north by Hampstead, east by St. Pancras and Holborn, south by the City of Westminster and west by Paddington. Pop. (1931) 97,62o. The boundary runs along Oxford Street, on the south, crossing Regent Street at Oxford Circus, and Edgware Road on the west; Marylebone Road crosses from east to west. St. Marylebone was in the manor of Tyburn, which takes name from the Tyburn, a stream which flowed south to the Thames through the centre of the present borough. The church was called St. Mary at the Bourne. The name Tyburn (q.v.) was notorious chiefly as applied to the gallows which stood near the existing junction of Edgware Road and Oxford Street (Marble Arch). The manor at the Domesday Survey was in the possession of the nunnery at Barking, but the borough includes several estates, such as the manor of Lyllestone in the west, the name of which is preserved in Lisson Grove. From 1738 to 1776 Marylebone
Gardens (which had existed under other names from the close of the 17th century) became one of the most favoured evening resorts in London. They extended east of High Street as far as Harley Street, but by 1778 the ground was being built over.
The borough includes almost the whole of Regent's Park, with a portion of Primrose Hill north of it. The park, originally Marylebone Park, was enclosed by James I., and received its modern name from the Prince Regent, afterwards George IV. It contains the Zoological Gardens. Here are also the gardens of the Royal Botanic Society, incorporated in 1839. The Toxo philite Society, founded in 1781, has also occupied grounds here since 1883. Another famous enclosure is Lord's Cricket Ground, St. John's Wood Road. Marylebone station is a terminus of the L.N.E.R. The borough returns one member to parliament. Area 1,473 acres.