Edward Brenchley Bishop was the fourth chairman of the Christchurch Town Council, and seven years later the sixth Mayor of Christchurch in 1872–1873. Born in Maidstone, Kent to a wealthy family, his family lived in Belgium during his childhood. He took his father's profession as a distiller and worked in London for 21 years. His sister Susannah emigrated to New Zealand in 1849 and in the following year, many Bishop siblings followed her on the Charlotte Jane, one of the First Four Ships of organised settlement of Canterbury. With his brother Frederick, he had a large farm just south of Christchurch, and the suburb of Somerfield continues to use their farm's name. The brothers were spirit merchants in the city.

The Mayor of Christchurch is the head of the municipal government of Christchurch, New Zealand, and presides over the Christchurch City Council. The mayor is directly elected using a First Past the Post electoral system. The current mayor, Phil Mauger, was elected in the 2022 mayoral election. The current deputy mayor is Pauline Cotter.