Lady Bluebury is the mother of Gnomeo, the former leader of the Blue Gnomes and a supporting character in the 2011 film Gnomeo and Juliet and it's 2018 sequel Sherlock Gnomes.
She is voiced by Maggie Smith who also played Professor McGonagall in the Harry Potter franchise.
Gnomeo and Juliet
Lady Bluebury is the leader of the Blue Gnomes who live in Mrs. Montague's garden in Stratford-Upon-Avon and was rivals with Lord Redbrick and the Red Gnomes who live next door in Mr. Capulet's garden.
She was first seen making fun of Lord Redbrick about his tulips and his misuse of fancy words. She later met up with her son, Gnomeo, to wish him luck for the lawn mower race against Tybalt. She later gave a nod of approval when Gnomeo decide to take action against the red gnomes when Tybalt won the race by cheating.
Lady Bluebury was later seen crying because the red gnomes destroyed their most prized plant, which her late husband had planted and grown himself. She asked Gnomeo where he was and Gnomeo told her that he was nowhere when in reality, he was on a date with Juliet, Lord Redbrick's daughter. She later heard a noise of breaking glass and went with the others to investigate. She learned that Gnomeo had fought with Tybalt and Tybalt ended up hitting the wall and smashing to bits. She watched in horror as Gnomeo get chased by the vengeful red gnomes and apperently got smashed by a car. She mourns for Gnomeo's death, not knowing that Gnomeo was still alive.
She later saw Benny with the Terrafirminator and approve with his plan of revenge to the red gnomes. The destruction caused the Terrafirminator later resulted to war between the blue gnomes and red gnomes. She soon saw Gnomeo, alive and well, and was relieved. However, her joy was short-lived with the out-of-control Terrafirminator crashes into Juliet's pedestal which both Juliet and Gnomeo were on. Believing the two to be dead, Lady Bluebury and Lord Redbrick end the feud between the gnomes. When Lord Redbrick accidentally stepped on the switch to the pedestal, which knocks down the rumbles, she saw that Gnomeo and Juliet were still alive.
Lady Bluebury later witness her son's marriage to Juliet and dances with Lord Redbrick.
Following the Blue and Red Gnomes union, they move from Stratford-Upon-Avon to London. After arriving in their new garden, Lady Bluebury and Lord Redbrick decide to retire from their positions and are succeeded by Gnomeo and Juliet.
- Lady Bluebury is based on Lady Montague from Romeo and Juliet.