Diocletian Window Page

A (also known as a Thermae window ) is a specific type of large, semi-circular window that is typically divided vertically into three sections (lights) by two vertical mullions.

A (also known as a thermal window ) is a large, semicircular window that is typically divided into three lights (sections) by two vertical mullions. It is named after the Roman Emperor Diocletian (r. 284–305 AD), as it was a prominent feature of the baths he built in Rome, though similar forms existed earlier. diocletian window