Song would maintain rites honouring the Shang kings until Qi conquered Song in 286 BC. Confucius was possibly a descendant of the Shang Kings through the Dukes of Song.

The Eastern Han dynasty bestowed the title of Duke of Song and 'Duke Who Continues and Honours the Yin' upon Kong An, because he was part of the legacy of the Shang. This branch of the Confucius family is a separate branch from the line that held the title of Marquis of Fengsheng village and