Machado de Castro was born in Coimbra, and was a celebrated figure throughout Europe in the eighteenth and early nineteenth centuries.

He was the older stepbrother of organist Antonio Machado e Cerveira, to the latter's benefit in navigating social and political life.

[2] The Descripção is the artist's detailed comments on the style and execution of his finest work, the equestrian statue of D. José I, erected in 1775 as part of the rebuilding of central Lisbon after the disastrous earthquake of 1755.

[3] The stages of construction are illustrated with sections and cross-sections of the horse and rider, views of the statue from different angles, and details of armor and ornamentation.

This bronze statue remains one of Lisbon's most important monuments, and dominates one of the major squares of Europe, the Praça do Comércio or Terreiro do Paço.