KING Charles will deliver a speech honouring his late mother Queen Elizabeth II on her 100th birthday.

The recorded address will be broadcast tomorrow – marking what would have been the Queen’s Centenary.

The world was left in mourning after Queen Elizabeth II passed away peacefully at Balmoral Castle on September 8, 2022.

She died at the age of 96 after an incredible 70 years on the throne.

Her Majesty – who overtook Queen Victoria as the longest reigning monarch in 2015 – was born on April 21, 1926.

Since the death of his late mother, Charles has been forced to navigate a series of challenges, both personally and within the Royal Family.

The King, 77, revealed he been diagnosed with cancer in February 2024.

His Majesty began a schedule of regular treatments and postponed front line duties on the advice of doctors.

After receiving regular cancer treatment for almost two years – and after a few months recovering – Charles later returned to frontline duty.

The following month, Kate revealed in an emotional video statement that she too had cancer – just weeks after the King shared his own diagnosis.

In an unprecedented video, Kate revealed her medical news and said it had come as a “huge shock”.

The Princess of Wales later spoke of her “relief” as she revealed she was in remission last January.

And Charles has only had a number of brief meetings with his youngest son Prince Harry in recent years.

Royals mark Queen Elizabeth's 100th birthday

But there has been reconciliation speculation in recent months and sources say Charles and Harry appear keen to end their lengthy feud.

Meanwhile Harry’s children Archie, six, and Lilibet, four, haven’t met their grandfather in nearly four years.

And Meghan, 44, has not been to the UK since the Queen’s funeral in 2022.

Charles has also been hailed for his decisiveness in dealing with his disgraced younger brother, Andrew Mountbatten-Windsor.

Cops swooped on Andrew’s Sandringham home on his 66th birthday and announced they had arrested him an hour later.

Charles had earlier brought down the axe – starting the formal process of removing ‘the Style, Titles and Honours of Prince Andrew’ last October.

And – after weeks of negotiations – the King’s brother finally agreed to give up living in his 31-room mansion Royal Lodge.

The late Queen had two birthday celebrations each year – one on her actual birth date and the other on her “official” birthday.

The latter was a public celebration and marked by public gun salutes in places like Windsor Great Park, the Tower of London and Hyde Park.

Elizabeth was just 25 years old when she became Queen after the death of her father King George VI on February 6, 1952.

But she had reached the age of 27 by the time of the coronation on June 2, 1953.

Queen Elizabeth II became the first ever British Monarch to celebrate their Platinum Jubilee.