Gu Guan is also called Gu, Gu, Gu, Gu, Gu, Gu, Gu and so on. "Auntie Crown" is actually a Chinese transliteration of Mongolian "women's headdress". In fact, my aunt has four explanations in the Chinese dictionary. This word is not only "a polite address for my father's sister or younger sister", but also means "woman"; "Crown" means hat. In fact, the above all refer to the same thing, that is, a headdress of Mongolian women in the Yuan Dynasty, a tall and long hat with Mongolian as "".

The origin of this unique crown costume is a special marriage-robbing custom of Mongols. Later, the menstruation crown became a symbol to distinguish married women from unmarried girls. In this way, a woman wearing a menstruation crown can avoid being "robbed" or "proposed" by outsiders who don't know whether she is married or not.

That is to say, the hats of men and women are different in style. In A Brief Introduction to Black Tatar, Mongolian men "wear hats and summer hats". At the end of Yuan Dynasty and the beginning of Ming Dynasty, Ren Ye also said in the book "Vegetation" that Mongolia "all officials and people wear [wear] hats, and their eaves are round or front and back; Or architecture, covering up the legacy of pockets. " The so-called "architecture" probably refers to Dai Li, so it is a relic of ancient helmets. The so-called hat is a hat with a round brim and a hat shape. Because it is shaped like a cymbal, it is called a cymbal crown. This crown has a top and a silk hanging behind it to protect the neck.