Prince William asked for Kate Middleton’s parents’ permission first before he proposed to her. And the dad of three organized a private shooting lesson for Michael and Carole Middleton in Balmoral.

In an article she wrote for Vanity Fair, royal author Katie Nicholl said that the Duke of Cambridge also sought Prince Charles’ support, and the heir to the throne was on board with his plan. In fact, Prince Charles even gave his permission for the Middletons to stay in Birkhall and to use his private car.

“William organized a private shooting lesson for them, and on Saturday night, just before dinner, he took Michael aside. In the tartan-furnished drawing-room, which is exactly as the late Queen Mother left it, he asked Michael for permission to marry Kate,” Nicholl said.

After Michael gave Prince William his blessing, the dad of three then asked his father-in-law to promise him one thing. The second in line to the throne asked Michael to swear a vow of silence to ensure that no one would know about his plan before he informed Prince Charles and Queen Elizabeth about it.

But even before Prince William asked for the Queen’s permission, the monarch already had an inkling that her grandson will be proposing to his longtime girlfriend. After all, she noticed that Princess Diana’s ring is missing from the Royal Collection. Still, Prince William formally asked the Queen’s permission, and she said yes.

The Duchess of Cambridge’s dad also lived up to his promise. But photos of the Middletons shooting in Balmoral were leaked by the paparazzi in November 2010. Days later, the Duke and Duchess of Cambridge’s engagement were announced.

Prince William and Middleton tied the knot at Westminster Abbey five months later. And their wedding ceremony was attended by thousands of people. However, one member of the royal family was not invited. Sarah Ferguson watched the royal wedding on her television back home.

Britain's Prince William stands at the altar with his bride, Kate Middleton, and her father Michael, during their wedding at Westminster Abbey in central London
Britain's Prince William stands at the altar with his bride, Kate Middleton, and her father Michael, during their wedding ceremony at Westminster Abbey in central London April 29, 2011. Reuters