After his founding of the Lan Na Kingdom in the mid-13th century, King Mangrai established friendly relations with Burma when he travelled to the court of King Suttasoma of Pegu. King Suttasoma cemented this friendship by giving Mangrai his daughter, the Lady Phai Kho, in marriage. According to the Chiang Mai Chronicle “the two rulers met at the Asa (Sittang?) River, and feasted their retainers with food and drink, and staged great entertainments for three days and three nights.