The Castle of Sernancelhe is a medieval castle in the civil parish of Sernancelhe e Sarzeda, municipality of Sernancelhe, in the Portuguese district of Viseu.
Wikipedia https://en.wikipedia.org/wiki/Castle_of_Sernancelhe
Address (Unnamed Road), Sernancelhe 3640, Portugal
Coordinates 40°54'3.841" N -7°29'44.201" E