Lord Mayor of London been mandatory for election to the Lord Mayoralty. Two Sheriffs are selected annually by Common Hall, which meets on Midsummer's Day for this purpose. By an ordinance of 1435, the Lord Mayor must be chosen from amongst the Aldermen of the City of London. Those on the electoral roll of each of the City's 25 Wards select one Alderman, who formerly held office for life or until resignation. Now each Alderman must submit for re-election at least once in every six years. The Lord Mayor is then sworn in November, on the day before the Lord Mayor's Show ("see below").
William Leighton (Lord Mayor of London) south Wales. Leighton also owned several ships that were sent as military transports to the British Province of Quebec with contracts from the British Navy. Because of his maritime interests, Leighton served on various shipping committees. Leighton was a member of the Livery company of the Worshipful Company of Wheelwrights. He was created an alderman in the City of London's Billingsgate ward in 1799, before his resignation as an alderman in 1821. He was subsequently elected one of the Sheriffs of the City of London in 1803. In 1806, Leighton was proclaimed Lord Mayor of London, and knighted on 1