What is Monomakh's Cap?

Monomakh's Cap , also called the Golden Cap , is a chief relic of the Russian Grand Princes and Tsars. It is a symbol-crown of the Russian autocracy, and is the oldest of the crowns currently exhibited at the Imperial treasury section of the Kremlin Armoury. Monomakh's Cap is an early 14th-century gold filigree skullcap composed of eight sectors, elaborately ornamented with a scrolled gold overlay, inlaid with precious stones and pearls, and trimmed with sable. The cap is surmounted by a simple gold cross with pearls at each of the extremities.