Suitably impressed with her heroic efforts, William said he had “no idea” what his own son, Prince George, would do in such circumstances.
He said: “I have a four-year-old called George and if I gave him a telephone, I do not know what he would do.”
He added: “Do you know what, I’m going to have a conversation with my George about what to do because of what you’ve done — it’s really important.”
The Duke also met two of the police heroes from the London Bridge terrorist attack, Wayne Marques and Charlie Guenigault, who tackled knife-wielding jihadis during their murderous rampage in June.
The officers said it had been “an honour” to meet the Prince and hear how much he knew of their efforts.
Mr Marques said: “It’s great to be honoured by the Royal Family and to actually speak to him like that.”