Prince William and Prince Harry have been by each other's side for almost all of their major milestones in their lives so far.

But it looks like Prince William may not be able to be with his younger brother for his next important life event – the birth of his first child.

Kensington Palace yesterday announced that the Duke of Cambridge will be paying a visit to New Zealand, in the wake of the Christchurch terrorist attack. The visit is due to take place in late April, although no exact dates have been confirmed.

And it’s in late April that the Duchess of Sussex is due to give birth – so there’s every chance that William’s visit may coincide with the arrival of the new baby!

However, it’s clearly an important visit, so we’re sure Harry and Meghan will more than understand William’s important duties.

Of William’s trip, the palace said, ‘The Duke will meet with those affected by the attack and will pay tribute to the extraordinary compassion and solidarity that the people of New Zealand have displayed in recent weeks.’

The visit is being made after a request from the Prime Minister of New Zealand, Jacinda Ardern.

The Duke of Cambridge has a long history with the country of New Zealand, having visited there following the Christchurch earthquakes in March 2011, just before his April wedding. He and Kate Middleton also returned in 2014, for an official visit.

Prince Harry and Meghan Markle were the last royals to touch down in New Zealand, as part of their lengthy, weeks-long tour back in September.

Even if Prince William does miss the birth of his second niece or nephew, we’re sure he’ll be round for a visit as soon as he gets back to England.

Plus, the Duke and Duchess will likely have plenty of support from her mother Doria Ragland, and the rest of the royal family when the big day comes.