The party was set to take place at the Oxfordshire mansion which she shares with Formula One husband Christian Horner

Geri Horner’s star-studded 50th birthday party was set to take place this weekend, but she has cancelled it out of respect for Her Majesty.

The former Spice Girl turned 50-years-old on 6 August, and had planned an extravagant party at the Oxfordshire mansion which she shares with Formula One husband Christian.

However, after the sad death of Queen Elizabeth II on Thursday, 8 September, the UK is now in a period of mourning - with sports matches and fashion week being cancelled.

Geri Horner during a reception for winners of the Queen’s Commonwealth essay competition at Buckingham Palace in October 2019. (Photo by Jeff Spicer - WPA Pool/Getty Images)

Geri has subsequently made the respectful decision to cancel her own private party, which was due to fall just days before The Queen’s state funeral on Monday, 19 September.

The royalist paid tribute to Her Majesty following the announcement of her death.

She described the late monarch as the “epitome of dignity and elegance” to her 1.2 million Instagram followers.

The star-studded party was set to be a full Spice Girl reunion - the first one since the closing ceremony of the 2012 Olympics.

Spice Girls Victoria Beckham, Geri Halliwell, Emma Bunton, Melanie Chisholm and Melanie Brown perform during the Closing Ceremony of the London 2012 Olympic Games. (Photo by Jeff J Mitchell/Getty Images)

The Spice Girls were lucky enough to meet Queen Elizabeth II multiple times during her70-year reign, as Geri posted a photo of her shaking hands with the late monarch.

On Her Majesty’s Platinum Jubilee, a tribute from Ginger Spice was broadcast during the Party At The Palace celebrations.

In the touching speech she said: “Our Queen, kind, loving, strong, serving our country, the Commonwealth, uniting us all together.

“Always putting others before yourself, you’re truly inspirational, inside and out, we thank you...we love you.”

The girl-band singer also labelled her an “inspirational leader” on Instagram.

Scary Spice Melanie Brown and Baby Spice Emma Bunton also used their social media to pay their respects to The Queen, following her death.

Geri, formerly Geri Halliwell, began dating Christian Horner in February 2014 - and annouced their engagement just nine-months later.

Christian, 48, is the team principal of the Red Bull Racing Formula One team.

Christian and Geri Horner celebrate the win of Sergio Perez of Mexico and Oracle Red Bull Racing after the F1 Grand Prix of Monaco at Circuit de Monaco on May 29, 2022. (Photo by Mark Thompson/Getty Images)

The pair welcomed their first child, Montague George Hector Horner, into the world on January 21, 2017.

Known better as Monty, the now five-year-old was named in tribute to their close friend George Micheal.

They also have another child each from previous relationships; 16-year-old Bluebell Madonna Halliwell and eight-year-old Olivia Horner.

The pair split their time between their two family homes; one in Oxfordshire and one in Hertfordshire.

Their Oxfordshire mansion, where the party was to be held, boasts a swimming pool, a large outdoor barbecue and a country farm.

Geri Horner cancels her 50th birthday party following Queen Elizabeth II’s death