There are many compound surnames in our country, such as Ouyang, Situ, Sima, Zhuge, Yuchi, Dugu, Jia Xu and so on. These surnames have different origins and meanings. Let me introduce their basic information and characteristics. Ouyang: The Ouyang surname originated from the Ji surname, which was a noble surname in the Zhou Dynasty. It was said that Ouyang Gong was the son of King Wen of Zhou and had led an army to attack the State of Qin. Later, Ouyang gradually evolved into a minority surname such as the Tibetan Ouyang. Situ: The Situ surname originated from the surname Lang, which was a noble surname during the Zhou Dynasty. It was said that Bi Gonggao, the grandson of King Wen of Zhou, was the ancestor of the Situ family. During the Zhou Dynasty, the Situ family held important official positions such as managing land and offering sacrifices. Sima: The Sima surname originated from the surname Si, which was a noble surname during the Zhou Dynasty. It was said that the fifth son of King Wen of Zhou, Bi Gonggao, was the ancestor of the Sima family. The Sima family held important positions in the Zhou Dynasty, such as managing the army and criminal law. Zhuge: The Zhuge family originated from the surname Jiang, which was a noble surname in the Shu Han Dynasty during the Three Kingdoms period. Legend has it that Zhuge Wuhou was one of the founders of the Shu Han Dynasty. He was good at military strategy and was called "Zhuge Wuhou" by later generations. Yuchi: The Yuchi surname originated from the surname Du, which was an aristocratic surname during the Tang Dynasty. It was said that Duke Yuchi was a famous general of the Tang Dynasty who had led troops to battle many times and established immortal meritorious deeds. Dugu: The Dugu surname originated from the Yuwen surname, which was an aristocratic surname during the Northern and Southern Dynasties. It was said that Yuwen Jue was an emperor during the Northern and Southern Dynasties. He founded the Yuwen regime and the Dugu clan rose to power. Jia Xu: The Jia Xu surname originated from the Han surname Jia. It was a noble surname in the State of Wei during the Three Kingdoms period. It was said that Jia Xu was one of the strategists of Shu Han during the Three Kingdoms period. He was good at strategy and had helped Shu Han tide over difficulties many times. These compound surnames have different origins and meanings, but they all have a long history and cultural heritage, which is an important part of Chinese traditional culture.