Thangka is a Nepalese art form imported to Tibet after Princess Bhrikuti of Nepal, daughter of King Lichchavi, married Sron Tsan Gampo, the ruler of Tibet imported the images of Aryawalokirteshwar and other Nepalese deities to Tibet. Thangkas are made on various fabrics. The most common is a loosely woven cotton produced in widths from 40 to 58 centimeters (16 – 23 inches). While some variations do exist, thangkas wider than 45 centimeters (17 or 18 inches) frequently have seams in the support.