Daode Tianzun said to be the same as Laozi
Daode Tianzun (Chinese: 道德天尊; lit. 'The Heavenly Lord of Dao and its Virtue'), also known as Taishang Laojun (Chinese: 太上老君; lit. 'The Supreme Venerable Sovereign') is a high Taoist god. He is the Taiqing (太清, lit. the Grand Pure One) which is one of the Three Pure Ones, the highest divinities of Taoism. 
Laozi is regarded to be a manifestation of Daode Tianzun who authored the classic Tao Te Ching. He is traditionally regarded as the founder of Taoism, intimately connected with "primordial" (or "original") Taoism. Popular ("religious") Taoism typically presents the Jade Emperor as the official head deity. Intellectual ("orthodox") Taoists, such as the Celestial Masters sect, usually present Laozi (Laojun, "Lord Lao") and the Three Pure Ones at the top of the pantheon of gods.