Bhutan is a Bhuddist kingdom which believes it is under the protection of the raven-faced deity, Legön Jarok Dongchen.
In the 17th century, a monk called Zhapdrung Ngakwang Namgyel was exiled from Tibet. Just before he began his journey of exile, he had a dream where he was flying, following a raven, which was leading him to what is now Bhutan. He interpreted it as a message from the raven-deity to be glad he was being exiled from the mess in Tibet because he was going to find a new safe place.
He duly settled in Bhutan, defeated the Tibetans who pursued him, and managed to found a country built around his version of Bhuddism.
In the 19th century the bhuddist monks crowned their first king, using rituals normally reserved for a lama. The ceremony included a raven crown, which also had bhuddist symbols on it to ward off evil from the king and his country.
Ever since, Bhutan's kings have been crowned with the Raven crown by the most senior lama (bhuddist monk) in the country.
Here is the fifth king, Jigme Khesar Namgyel Wangchuck, wearing the Raven Crown at his coronation on November 6th 2008:
