The reason why Prince William and Duchess Kate skipped Prince Charles's birthday party

When Prince Charles celebrated his 70th birthday with a garden party, Prince William and Kate Middleton were the only ones that missed the celebration.

The Duchess of Cambridge only gave birth to Prince Louis on April 23, 2018, so she is officially still on maternity leave even though she did attend the Royal Wedding, as Harper BAZAAR reported.

Prince William was not in attendance at the event, as he was across town giving a speech at a remembrance service for victims of the Manchester bombing attack.

At 2 pm, the Duke of Cambridge, and the Prime Minister, Theresa May, paid their respects at the national service of remembrance.

The attack took place at Manchester Cathedral on May 22, 2017. In that tragic day, more than 20 people were killed and hundreds injured when a bomb went off during an Ariana Grande concert.

The service had been relayed live to screens in Liverpool Metropolitan Cathedral, York Minster, and Glasgow Cathedral. The service closed with a blessing from the Archbishop of York, Dr. John Sentamu.

Meanwhile, Kate is still on maternity leave after giving birth to Prince Louis, the royal mom of three explained that maternity leave will last about six months. During that time it's very likely that the public won’t see her at events.

"It is traditional for new royal mums to take a six-month break from official engagements," explained the royal biographer, Duncan Larcombe.

"The wedding doesn't count because it was a 'family affair' but other than that, she will pick and choose her engagement," added Larcombe.

So it is clear that Prince William and Kate Middleton‘s absence from the Buckingham Palace garden party in honor of Charles’ upcoming 70th birthday wasn’t due to any lack of support for the new royal family member.

This event became Meghan and Harry’s first royal duty as husband and wife after they were married in a ceremony at St George’s Chapel at Windsor Castle on Saturday, May 19.

The couple delayed their honeymoon to attend the garden party and will not jet off until later in the year.