Laughing with photographers, Mary revealed her new daughter, who slept soundly throughout the photocall, is an absolute joy, saying: "She's been very good and kind to her mother."
The Princess also revealed her first child, Prince Christian, had said hello to his little sister during a private visit to the hospital on Sunday morning.
According to Australian-born Mary, a former Sydney estate agent, her 18-month old son was delighted to meet his sister: "He was enthusiastic to see her and showed a little bit of boyish love."
Although all eyes were invariably on the special ladies in his life, Crown Prince Frederik also took time to speak to the gathered media, saying he and his wife are "fortunate and lucky" to have been blessed with a girl.
Comment: Lovely family! Thank you Joanne for sharing this with us! I hope we'll be seeing more of this family here on the Royalist.
Name: Trudie
Comment: What a beautiful Princess!!!!! Frederik and Mary are the epitome of family. M-M is so right they are rays of sunshine.
Name: M-M
Comment: Frederik and Mary and their children and dog make you feel good just to see their photos . We have so much of the other type of news in this world that it is like a ray of sunshine
Name: Jessica Wales
Comment: These two are utterly delightful. I am so thrilled that they have been so blessed. I am dying to know the Princess's name!