Meghan and Harry
During the Invictus Games closing ceremonies Prince Harry was with other people in a private box but after some time he got together with his girlfriend Meghan and even seeing kissing her on the cheek.
Prince Philip and Queen Elizabeth II
During the celebration of New Year’s Eve in 1999 Prince Philip kissed the Queen on the cheek.
Camilla and Charles
A couple of months after it was made known that Camilla and Charles got married they were spotted kissing some time after a polo match in Cirencester, England.
Will and Kate
Prince William gives a small kiss to his wife Kate right on the cheek as a celebration for his team winning the Foundation Polo Challenge in 2011.
Prince Harry and Chelsy Davy
Before his girlfriend Meghan Markle, Prince Harry was dating Chelsy Davy and here you can see them kissing at the memorial concert for Princess Diana, his mother, in 2007.
Prince Harry and Chelsy Davy
Here they are seen locking lips at the 2007 ICC Cricket World Cup.
Charles and Diana
This is just one of the times they were caught kissing on camera, this specific picture was taken in 1987 at a polo match.
Diana and Charles
Another kiss they shared at a polo match, this one was in Windsor yet again in 1987.
Diana and Charles
This one was in 1985.
Queen Elizabeth II and Prince Philip
Here we can see the Queen boarding a flight for London from Ottawa and Prince Philing giving her a kiss on the cheek.
Source: townandcountrymag.com