Fraser Bond are the leading lettings and property management agents for Hertford House - London W1U. Hertford House is home to The Wallace Collection in Marylebone, London W1. Formerly known as Manchester House, it was built between 1776-88 for the 4th Duke of Manchester because there was a good duck shooting nearby. In 1791-95 it was used as the Spanish Embassy and soon after, in 1797, the 2nd Marquess of Hertford (b.1743-d.1822) acquired the lease of the house. The 2nd Marquess used the house as his principal London residence, holding many parties there, the most prestigious of which was the.