[5] The intendant Antônio Lemos was responsible for expanding the city, widening avenues and draining swamps, as well as building iron monuments at the Ver-o-Peso Market and towards the Largo da Pólvora, today's Republic Square.

[5] The Largo da Matriz defined the urban layout of Belém, starting with the construction of the first streets and houses of the colony, from where the first roads opened in the forest towards the countryside were born.

[4][7] With a collection dating from the 17th, 18th, and 19th centuries, the patrimony of the square represents, historically and culturally, the society of Belém, beginning with the relationship between the settlers and the indigenous and black people.

[9] Therefore, the Feliz Lusitânia Complex, developed in order to valorize the historic area of Belém, included the square in its project, which resulted in the revitalization and restoration of the region.

[7] Since 2003, with the lengthening of the boats route that made possible the arrival of the Círio Fluvial to the Feliz Lusitânia Complex, the spaces called Janelas para o Rio (English: Windows to the River) were created.