The 115-year-old royal custom was broken by Kate Middleton.

On St. Patrick's Day, it was customary to give shamrocks to the Irish Guards.

Since their wedding in 2011, she has been by Prince William's side at every ceremony.

Kensington Palace made the decision to forego the shamrock presentation in 2016.

Instead, Kate opted to spend time with her family.

She joined Prince William and the Irish Guards in celebrating St. Patrick's Day.

Kate has been promoted to the rank of Colonel in the Irish Guards.

She is well-known for the active role she plays as a mother.

The attention that Kate is giving to her children is a departure from the usual obligations of a royal.