Biblioteca da Ajuda MS 49.III.20.n.º 21, dated 10 May 1651. The witness is an eight-folio quarto manuscript on paper with a nineteenth-century cover.
Quality phase 351: the manuscript title explicitly states that it was given at Alcântara on 10 May 1651. Alcântara is normalized to Lisboa in the city authority while the precise historical wording is retained here.