In 1824, Barbados became the seat of the Anglican Diocese of Barbados and the Leeward Islands. The St Michael's Parish Church became a cathedral, so that Bridgetown became a city. In 1842, Barbados, Trinidad, Tobago, Grenada, Saint Vincent, and Saint Lucia were split into separate dioceses by Royal Letters Patent which also decreed that the Town of Bridgetown should be called the City of Bridgetown.