Complex sentence: From 1787 the New Jerusalem church of Swedenborgians, followers of the mystic Emmanuel Swedenborg worshipped at the church of Saint Mary the less until 1852 when they moved to Park Lane.
Split into simpler sentences: From 1787 the New Jerusalem church of Swedenborgians, followers of the mystic Emmanuel Swedenborg worshipped at the church of Saint Mary the less. They remained there until 1852 when they moved to Park Lane.