Gugu hat

Gugu hat (罟罟冠 or 固姑冠 or 顧姑冠 or 故姑冠; pronounced as Guguguan in Chinese) is a tall headdress worn by Mongol noblewomen before and during the Yuan dynasty. It is also known as boqta, boghta, botta, boghtagh or boqtaq. The gugu hat was one of the hallmark headdress of Mongol women in the 13th and 14th century. It was always worn with the formal robe of Mongol women.

The boqta also appeared in the Ilkhanate (1256–1335 AD), in Korea when Mongol princesses married in the Goryeo court, and continued to be used in the Timurid court in the 15th century AD.