The Tokudaiji Family had a strong kindred connection to the Saionji Family; for example, in the Meiji period Kinmochi SAIONJI was born into the Tokudaiji Family and subsequently adopted by the Saionji Family (as an act of nyushi (joining the family to become an heir)).
西園寺家と同族意識が強く、たとえば明治時代の西園寺公望は徳大寺家に生まれ西園寺家に入嗣。