元稹《连昌宫词》有句云:“尔后相传六皇帝,不到离宫门久闭。”陈寅恪、周相录先生先后对“六皇帝”的“六”这一数字提出质疑。陈寅恪《元白诗笺证稿》推断:“自玄宗不到离宫之后,顺数至‘今皇’即宪宗,只有五帝……颇疑微之于本朝君主传代之数,似不应伪误至此,而诿为野老记忆不真之言。”周相录在《元稹生平与作品考索》《元稹〈连昌宫词〉“尔后相传六皇帝”辨正》中提出不同看法,认为“六”为“三”之讹 Yuan 稹 “Lianchang Gong Ci” there is a saying goes: “According to legend, the Six Emperors later, not far from the palace gate.” “Chen Yin Ke, Mr. Zhou Xianglu has” six emperors “” six “this figure question. Chen Yinke ”Yuan Bai Shi Jian draft“ inferred: ”Since the Xuanzong not to the palace, the number to the ’present emperor’ that constitutional monarchy, only the Five Emperors ... False mistakes to this, and 诿 for the old memory is not true words. “” Zhou Xiangsu in “metaphysics life and works test” “Yuan 稹 ” Later, according to legend, the Six Emperors, “put forward different views , That ”six “ for ”three " of the truth