Chikayoshi HORIKAWA (the son of Yasuchika HORIKAWA) and his son, Yasutaka (they are brothers on the pedigree record as Yasutaka is recorded as the adopted son of Yasuchika, who is in fact Yasutaka's grandfather) participated in 'Teishin hachiju-hachi kyo ressan jiken' (Demo of eighty-eight retainers of the Imperial Court) with Tomomi IWAKURA, who was the younger brother of Chikayoshi and the heir of the Iwakura family.
堀河康親の子である堀河親賀・堀河康隆親子（ただし、康隆は祖父・康親の養子になっているため、系譜上は兄弟）、親賀の実弟で岩倉家を継いでいた岩倉具視は、廷臣八十八卿列参事件に参加している。