The family name Saionji comes from the fact that Kintsune had a temple called Saionji built in the vicinity of the modern-day Kinkaku-ji Temple (or more properly, Rokuon-ji Temple) in Kyoto.
なお、西園寺の家名は公経が現在の鹿苑寺（金閣寺）の辺りに西園寺を建立したことによる。