The Princess of Wales - Princess Kate - will attend a Trooping the Colour event later this year in her first official royal duty to be confirmed since she underwent abdominal surgery in January.

This latest announcement comes after the 42-year-old future queen was photographed in public for the first time since Christmas on Monday (March 4).

Kate was last pictured in public during a Christmas Day walk in Sandringham, Norfolk.

Concerns have been raised recently about Princess Kate's health after she underwent abdominal surgery in January and hasn't been seen in public since.

Kate was admitted to the London Clinic – the private hospital where the King underwent treatment for an enlarged prostate – for a planned operation on January 16.

After that, Kate left the hospital almost two weeks later on January 29.

She returned to Adelaide Cottage in Windsor to be reunited with her three children, Kensington Palace said.

But details of the princess’s condition have not been revealed with Kate wishing to keep her medical information private.

The Palace has previously said the princess's condition is not cancer-related.

Princess Kate confirms first official Royal duty following surgery

The Princess of Wales will attend the Trooping the Colour event on June 8 it was confirmed on Tuesday (March 5) by the Ministry of Defence.

This is her first official duty to be confirmed since she underwent abdominal surgery.

It is said the Kate, as Colonel of the Irish Guards, will carry out an inspection of the soldiers on parade during the Trooping the Colour event on June 8.

The Army’s website, which is selling tickets to the event for £15, said Trooping the Colour will be the same as the parade traditionally inspected by the monarch, which this year will take place the following weekend on June 15.

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The site said: “Trooping the Colour reviewed by Her Royal Highness The Princess of Wales is identical to Trooping the Colour reviewed by His Majesty The King, with the exception that some additional mounted officers ride when His Majesty The King is present.

“Taking part will be over 1,400 soldiers of the Household Division and The King’s Troop Royal Horse Artillery, including 400 musicians from the Massed Bands, all of whom will parade on Horse Guards for the second of two formal Reviews.

“Trooping the Colour reviewed by Her Royal Highness The Princess of Wales also includes 250 soldiers from the Foot Guards who will line the processional route along The Mall.

“The soldiers will be inspected by Her Royal Highness The Princess of Wales, Colonel Irish Guards.”