The Portuguese Tomb of the Unknown Soldier (pt: Túmulo do Soldado Desconhecido) is located at the Monastery of Batalha, near Leiria.
It holds the bodies of two soldiers of World War I — one from the battlefields of Flanders, and one from the African theatre — who were buried there on 6 April 1921.

Tomb of the Unknown Soldier at the Monastery of Batalha
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The original article can be found at Tomb of the Unknown Soldier (Portugal) and the edit history here.