The Byzantine emperor was crowned while seated in a throne placed within the omphalion, the square of inlaid marble in the main floor.
"A cupola with banks of rosettes surrounding inlaid marble," Mr. Jordan said.
An Italian pair of gold-framed, inlaid black marble, depicts birds and flowers, and is even more decorative.
On the wall facing the door is a large map of inlaid marble depicting the St. Mihiel Offensive.
The interior features an arched slate mantel painted to resemble several colors of inlaid marble.
The only part of it which still survives is the 13th-century cloister, surrounded by graceful twisted columns of inlaid marble.
No floors of inlaid marble.
The floors inside are of inlaid marble.
The board was made of inlaid marble and it had red and white squares.
The floor is of inlaid Italian marble.
