 In time, the field of the Calçada became the town's Market square.The development of Póvoa de Varzim as an important fishery community in the 18th century prompted the royal provision by Queen Mary I.Forwarded by the queen on February 21, 1791, ordering "Corregedor" Francisco de Almada e Mendonça (the Almada) to reorganize the urbanization of Póvoa de Varzim, namely the creation of a new square in the old market square and substituting the diminished Old Square as the civic center.