《史记·三十世家·楚元王世家》
赵王刘遂，他父亲在高祖的儿子中排行居中，名友，谥号为 幽 。
赵王刘遂者，其父高祖中子，名友，谥曰 幽 。
King Zhao Liu Sui, his father was ranked in the middle of the sons of Emperor Gaozu, with the name You, and the posthumous title of You.