And it seems the doctor and patient (and Prince William by her side) had much to talk about during her 14-hour labor! Here are five things to know about the man who got the first look at the new Prince of Cambridge.
1. He's got a lot in common with Kate
Setchell, 69, loves art, is said to be an extremely good tennis player and counts sailing and gardening as hobbies. Kate studied art history, and all the Middletons love tennis (Kate and William bonded over the game when they paired up at St. Andrews University). She also sails and even tried her hand at growing potatoes last year.
2. He's a favorite of Queen Elizabeth
He's been surgeon/gynecologist to Her Majesty since 1990. And in 2005 he was made a Commander of the Royal Victorian Order in recognition of his service to the monarch and her family. "He is a lovely, old-school gentleman," a senior royal source says. "He is hugely-experienced and very highly rated by the Queen."
3. He's delivered other royal babies
Succeeding the late Sir George Pinker, who delivered Princes William and Harry, Setchell led the emergency c-section for Sophie Wessex as she gave birth to Lady Louise prematurely in November 2003. Louise, 9, was the first royal born in a public, National Health Service hospital – Frimley Park in Surrey – and was one of William and Kate's bridesmaids. Setchell also delivered her brother Viscount Severn, five, and was around the operating table when Camilla, Duchess of Cornwall, underwent a hysterectomy.
4. He's an East End guy
Educated at Cambridge University and St. Bartholomew's Medical School in London, he stayed put in the gritty East End, working at "Barts" and another local hospital for his early career. "He preferred ordinary obstetrics," says a medical source. His son Tom is following in his footsteps as a consultant obstetrician.
5. He's a diplomat
Setchell had to use all his professionalism to settle in to work at a hospital that is not his usual base. (He works mainly at King Edward VII's Hospital where Kate was treated for her acute morning sickness and he has rooms at the London Clinic, where Prince Philip was recently admitted.) "Some people hate working away from their normal place but he's good at that," says a medical source in London. "He's very smooth, a great team player. He's not cocky at all and doesn't ruffle people up."