Her Majesty Queen Elizabeth has officially lit the Platinum Jubilee Beacon to mark a truly remarkable 70 years on the throne

The beacon lighting follows a day of pomp and ceremony, with the Queen putting on a brave face after suffering from mobility issues.

Queen Elizabeth has confirmed she will not be attending the upcoming Jubilee service at St Paul’s Cathedral, pulling out last minute after suffering discomfort.

In a statement, Buckingham Palace says the decision was made ‘with great reluctance’, after considering both the journey to the cathedral AND activity required.

The Palace says the onset of discomfort followed Thursday’s Birthday Parade event, with Prince Charles representing his mother at the ceremony instead.

But the monarch had vowed to light the beacon, and that is exactly what she did.

Taking great care as she walked out onto the grass of Windsor Castle, she is seen using a cane for support.

This particular event is an important tradition for special royal occasions, including jubilees, weddings and coronations.

Her Majesty Queen Elizabeth has previously had a beacon lighting for her Silver, Gold and Diamond Jubilees, and her 90th birthday in 2016.