Britain's Prince George caused interest in his nursery to soar by 65 per cent.
The two-year-old royal - the son of the Duke and Duchess of Cambridge - is currently in his fourth week at Westacre Montessori School in King's Lynn, Norfolk and interest has already spiked in the school's various sites worldwide.
Louise Livingston, director of training at the Maria Montessori Institute, told PEOPLE magazine: "As soon as the first week in January hit and the news of George joining the nursery, enquiries have been almost constant. We've been hearing from a lot of people who want to be a Montessori teacher. We have an open afternoon every so often where people can come and observe students, and those events have been booking full. Before they weren't fully booked.
"That was almost instantaneous. People might have thought about working as a nursery teacher and might not have realised there was a specific training for Montessori. We have certainly noticed more awareness with that."
Meanwhile, Prince George - who has an eight-month-old sister, Princess Charlotte - was very "brave" on his first day of nursery, according to Duchess Catherine.
Recalling a conversation he had with the Duchess, retired Royal Navy lieutenant commander Arthur Coxon said: "They asked what my connection with the association was and I congratulated Kate on the lovely photos of Prince George.
"She said he went off to school bravely as anything and thoroughly enjoyed it."