LONDON (AP) — Buckingham Palace says Prince Harry's wife Meghan is in labor with their first child.

The palace says the 37-year-old Duchess of Sussex started labor early Monday.

She and 34-year-old Harry didn't disclose the location they chose for the birth. Throughout Meghan's pregnancy, they never revealed the baby's due date. They have said they didn't find out the sex in advance.

The couple married at Windsor Castle last year. They have moved into nearby Frogmore Cottage, a royal residence on the grounds where they held their wedding reception.

Journalists and well-wishers have been camped out for days in Windsor, about 35 kilometers (22 miles) west of London.

The baby will be seventh in line to the British throne and Queen Elizabeth II's eighth great-grandchild.