Queen dowager of Far Far Away
Lillian is a good and pious Queen and is loved by the people. She is a good mother, because she doesn't mind that her daughter married an ogre, as she just wants her to be happy. In Shrek the Third, it is revealed that she is a skilled fighter (she says to Fiona that her fighting skills were inherited from her). At the end of the film, she becomes a grandmother when Fiona gives birth to Ogre triplets. Unlike her husband, she is of royal birth; her father was the King of Far Far Away [Source?]. The throne was passed on towards Lillian and her husband, Harold after the latter's death. They became the new "King and Queen" of Far Far Away. It is suggested that Arthur Pendragon's father was most likely her brother.
Lillian's husband, Harold, was never actually a human. He was a frog who lived in a pond. One day, he met up with the fairy godmother, who allowed him to pursue his dream of marrying and loving Lillian, by making him human. Their first date was in the night and their first kiss made him human. After the death of Lillian's father, he became the king. His true identity was never discovered until his last months on the throne as ruler. Even when his true identity was discovered he was still loved by his people and family, greatly. He and Lillian are the mysterious princess and the frog.
She is right about to sign a Magical Contract to Rumpelstiltskin, to "lose all their problems" but then one of their servants said that her daughter was freed from the tower.
Queen Lillian makes her debut in the film Shrek 2, as the "Queen" of Far Far Away. Although initially surprised at Fiona's transformation into an ogre, she is far more understanding of what has happened and, seeing that her daughter is deeply in love, accepts Shrek into their family. She attempts to treat the situation as a normak in-law would, even bringing up the subject of grandchildren and not having a problem with the fact they will be ogres. She is suspicious when Prince Charming pretends to be Shrek, but doesn't realize the truth. When King Harold is turned back into a Frog at the end of the movie, she still accepts him as she did many years ago. It was revealed that she and Harold are the "Princess and the Frog" from the famous fairy tale by Brothers Grimm.
She becomes a more determined character, leading the pack of princesses through a series of tunnels in the castle, and breaking two walls by head-butting, whilst humming "My Favorite Things" (an in-joke referring to the song sung by Julie Andrews in The Sound of Music) and "A Spoonful of Sugar" from "Mary Poppins", another role Andrews is famous for. She is able to rally the other princesses from being damsels in distress to independent fighters. It was also revealed in the movie that Fiona inherited her considerable fighting skills from her mother (Lillian even asks "Well, you didn't think you got your fighting skills from your father, did you?") When Fiona reveals her pregnancy, she is extremely excited about becoming a grandmother. Lillian is last seen after the movie's finale in Shrek's swamp home, happily seeing her grandchildren and plays with an ogre triplet, who spits gobs up on her dress. She initially looks distressed and a little disgusted, but this changes as she finds it adorable and cute. There's an old saying that when a baby throws up on you, it means they like you and she might take it as such.
She doesn't appear much, only for two scenes: One at the beginning of the movie where there was a flashback of the king and queen who were just about to sign a contract to Rumpleskilsin who promised to make all there " problems disappear". The other was when she appeared disgusted after thinking Shrek ruined the cake by licking it and said " Just because you're an ogre doesn't mean you have to eat like one". She is also briefly seen playing with her grandchildren and dancing with an ogre while her husband's ghost looks on in jealousy.
Decorous and loved by all, Queen Lillian is tolerant of her daughter's decision to marry an ogre if it will make her happy, a thought that initially stands in contrast to her husband's. She seems to be briefly shy and sad after King Harold dies in Shrek the Third and doesn't say much, but after a little while, she perks up and begins accepting life without her husband. This is especially true when she learns that she is going to be a grandmother as Fiona is pregnant and is shown to be very excited. She is determined and nothing means more to her than her family; when they are in trouble, she does everything in her power to save them. Though gentle and nurturing for the most part, if threatened she springs into action and demonstrates her considerable fighting talents.
In "Shrek the Third" when Queen Lillian hits the prison wall with her head she starts to hum the song "My favourite things" from "The sound of music".