sub-lights

Updated: May 16, 2025

These two main lights are again much subdivided: at the top is a circle with spiral tracery; below it an arch enclosing an ogee exactly similar to the larger one above, springing from two sub-lights which are again subdivided in exactly the same manner, into circle, sub-arch, ogee and two small lights, so that the whole lower part of the window is really built up from the one motive repeated three times.

Walter Crum Watson - Portuguese Architecture