Mazu, also known as Matsu, is a popular Taoist and Chinese Buddhist goddess. She is the goddess and patroness of the sea. She is believed to protect fisherman and sailors. Mazu is widely worshiped in southern China, Vietnam, Taiwan, Zhejiang, Fuijian, Guangdong and Hainan. She is popularly known as Empress of Heaven and Holy Mother Empress of Heaven. Her other popular titles are Holy Mother Empress of the Heavens above, Heavenly Imperial Concubine, Lady Mazu, Heavenly Princess consort and Heavenly Holy Mother.