Britain's Prince William and his wife Catherine, Duchess of Cambridge, attended a tree planting ceremony at Rideau Hall in Ottawa on the third day of their royal tour of Canada on Saturday.

The couple stopped by a tree planted by William's late mother Princess Diana during her royal tour of Canada in 1983, and paid a quiet homage to the Princess, who would have turned 50 on July 1.

The Royal couple, who is on their first official overseas trip as man and wife, planted a hemlock tree, which symbolizes an everlasting love and marriage relationship. There are other hemlock trees around William and Kate's tree including the one planted by William's father Prince Charles along with his second wife Camilla in 2009.

Ironically, the tree planted by Diana has withstood test of time and grown tall, unlike her broken marriage to Charles.

Check out the pictures of Prince William and Kate Middleton reflecting quietly at the tree planted by his mother below: