On the other hand, a very old manuscript by an anonymous author kept in Sintra library mentions that the origin of the word of Seteais derives from the land named Centeais where rye (Portuguese: Centeio) was being cultivated.

[1] The Seteais Palace was built between 1783 and 1787 for the Dutch consul Daniel Gildemeester, on lands granted by Sebastião José de Carvalho e Melo, 1st Marquis of Pombal.

In 1797, some years after the consul's death, his widow sold the palace to Diogo José Vito de Menezes Noronha Coutinho, 5th Marquis of Marialva.

The old and the new wings were connected in 1802 by a neoclassical arch, built in honour of Prince regent John and Princess Carlota Joaquina, who visited the palace in that year.

The monumental arch, decorated with the bronze effigies of the royal pair and a commemorative Latin inscription, is attributed to architect Francisco Leal Garcia.