It will be a while before they realise the significance of their birthday, but 16 babies were born in Sheffield on Monday.
None of the mothers at the Jessop Wing matched the 4.24pm arrival time of the future king.
The closest was at 3.10pm when Francesco Esposito was born, weighing 6lb 9oz, to Kirsty McKone, aged 32, and 26-year-old Gabriel Esposito.
Kirsty, of Totley, said: “I had no idea until one of the midwives came and told me later that night. I was a bit surprised – I didn’t think he’d be born on the same day.
“It’s quite a special thing, I’m going to save papers and pictures for him so he can see what an occasion it was.”
Other Sheffield mothers can say they gave birth on the same day that the son of Prince William and Kate Middleton was born weighing 8lb 6oz.
George Peacock was born at 2pm, weighing 6lb 1oz.
Mum Nicole Berry, aged 23, of Parson Cross, said: “I wasn’t due until August 2, so I didn’t think I had any chance of having him on the same day as the royal baby.”
She added: “My partner Duane has been much more excited about it all than I am. He’s been obsessed, he kept watching the news.
“As soon as he found out Kate was in labour at the same time I was, he was on the phone to me.”
The son of Nabia Shoukat, 25, and Dr Nasir Ameer, 32, of Broomhill, arrived at 11.38pm, weighing 7lb 2oz.
“I was just praying he’d come before midnight,” said Nabia. “I knew he was going to be a boy and I knew the royal baby had been born.”
There was no immediate choice of name.