What kind of relationship did Fujiwara Nobutaka have with his wife Murasaki Shikibu? Was Daini Sanmi his real daughter?

April 25, 1001 (Choho 3) is the death anniversary of Fujiwara Nobutaka. Many people will remember the cheerful character played by Sasaki Kuranosuke in the historical drama "To You, Shining". In the drama, he was close to Fujiwara Tametoki, Mahiro (Murasaki Shikibu)'s father, and would bring him sake, cosmetics as souvenirs, and do other things to make him happy - you might think they were just distant relatives, but he eventually marries Mahiro…