Boris and Carrie Johnson have welcomed their third child together, named Frank Alfred Odysseus Johnson.
The baby boy, who will be known as ‘Frankie’, is Mr Johnson’s eighth child.
The couple made the announcement on Instagram Tuesday afternoon.
They are already parents to Wilfred, thee, and 18-month-old Romy.
Mrs Johnson wrote on Instagram: ‘Welcome to the world Frank Alfred Odysseus Johnson born 5th July at 9.15am. (Can you guess which name my husband chose?!)
‘Am loving every minute of the sleepy baby bubble. Seeing my older two embrace their new brother with such joy and excitement has been the most wonderful thing to see. We are all very smitten.
‘Thank you so much to the incredible NHS maternity team at UCLH. They really are the most amazing, caring people. I feel such immense gratitude.
‘Now, can anyone recommend any good series/box sets to binge while breastfeeding?
Mr and Mrs Johnson had their first child, Wilfred, on April 29 2020, in the early months of the Covid-19 crisis.
They married in May 2021 at Westminster Cathedral, with their second child, daughter Romy, born on December 9 in the same year.
The former Prime Minister has four children with lawyer Marine Wheeler.
He has a fifth child with art consultant Helen Macintyre.
Mrs Johnson only announced she was expecting her third child in May.
She wrote: ‘Wilf is v excited about being a big brother again and has been chattering about to nonstop.
‘Don’t think Romy has a clue what’s coming. She will soon.’