Photo by W. Robert Moore.
From “Castles and Progress in Portugal,” National Geographic, February, 1938.
Ship’s Ropes, Anchor Chains, and Coral Branches Tell a Sea Story in Carved Stone
Inspired by Portugal’s voyages of discovery and conquest, architects of King Manoel I developed the exuberant Manueline style, as seen in this window of the Convento de Cristo, at Tomar. At the top is the cross of the Order of Christ, which owned this convent-castle and contributed vast sums for exploration. An armillary sphere stands at each side. Coiled ropes have cork floats attached (center). The man’s head at the bottom, near the seated youngster, supposedly represents a sailor.
This window was created about 1510. More stunning views on the Wikipedia page.