Retired Emperor Toba agreed to Tadazane's request, allowing Taishi, who at 39 years old was not particularly young, to make her formal debut at the imperial court as an Imperial Consort on August 8, 1133.
鳥羽上皇は忠実の要望を容れ、泰子が三十九歳の高齢であったのにもかかわらず、長承2年（1133年）6月29日に彼女を入内させた。