After Kim Chunchu was enthroned as a King of Silla, she was then given the posthumous name; Queen Dowager Munjeong.
When the talk of her marriage has come, Princess Cheonmyeong went to the Queen and told her (with tears on her eyes) that she cannot marry anyone else because there is already a man who owns her heart.
But Kim Yongchun refused out of respect for his brother who might end up a laughing stock since their wedding was already announced.
On his death bed, Kim Yongsu asked his brother once again to marry Princess Cheonmyeong and to take his son as his own as his dying wish.
After Kim Chunchu was crowned as the 29th king of Silla, Princess Cheonmyeong was named as Queen Dowager Munjeong.