玄天上帝 xuántiānshàngdì God of Northern Heaven
The Daoist deity of the north; often depicted holding a seven-star sword with his feet resting on a turtle and a snake. Originally known as 玄武 xuánwǔ, he is commonly worshipped for health and longevity and is also known as 真武大帝 zhēnwǔdàdì.