He used to be a buddy of Diana's and hosted her in the country trusty three months before her premature loss of life in 1997.
When asked how their trip is going so far, Prince William mentioned his mother again. The royal couple will visit along with their three children on an official tour, which is expected to fix Pakistan's global image a great deal.
He told the prince that when he made a decision to become a professional cricketer, "I never realized how hard it was to eventually become one". "Similarly, when I told you that I wanted to succeed, I didn't realize it would take me 22 years".
Kate stayed in the ensemble when she and William visited schools in the Margalla Hills, which sit in the foothills of the Himalayas. William is also expected to honor his mother's humanitarian work in Pakistan during the visit.
The royal couple will then travel to Mr Khan's official residence in Islamabad for a private lunch.
The royals, who also attended a meeting with President of Pakistan, Arif Alvi at the Presidential Palace Tuesday, visited the classrooms of children between the ages of four and 18 to see how they're benefitting from the Teach for Pakistan programme.
The duchess looked elegant in an aqua shalwar kameez - a traditional Pakistani outfit comprised of a long dress and pants - by British designer Catherine Walker.
It comes as Britain seeks to reinvigorate its foreign relationships with the looming deadline for Britain's departure from the European Union, while Pakistan works to fix its global image to boost tourism and investment.
Girls are particularly sidelined from education in the conservative, traditionally patriarchal country where women have struggled for basic rights for decades.
"That's very sweet of you", he could be heard saying in the video. She came here three times. "I know they will get a very warm welcome", he added.
The British royal family said the visit encompasses "the modern leafy capital Islamabad, the vibrant city of Lahore, the mountainous countryside in the North, and the rugged border regions to the West".
"Their Royal Highnesses will also spend time understanding the complex security picture in Pakistan".