Sophie, the Duchess of Edinburgh, showcased her playful side as she took part in a drinking game while carriage driving.

The senior royal was pictured with a wine glass between her teeth as she tried to down her drink while driving her carriage. She then had to put the glass down at the next stop – but missed – which left her husband Prince Edward and daughter Lady Louise in stitches. 

Sophie was dressed in a gorgeous navy velvet jacket, matching hat long skirt and brown boots as she participated in the game at the event on the Sandringham estate in Norfolk. 

The 59-year-old skilfully guided her horse and carriage up to a wine glass perched on a post then drank the sparkling water as she drove along. 

But she didn’t manage to finish the drink in time – with several snaps showing her cheeks puffed out as she quickly tried to down it – and missed the second post where she was supposed to put the glass down.

Quickly realising her mistake, Sophie tried to reverse back, but when this didn’t work she held the glass between her teeth and carried on. 

Edward, who was dressed casually in a white polo shirt and straw hat, filmed the entire attempt on his phone while Louise, 20, watched beside him. 

She found her mothers’s attempt hilarious, and was captured pointing and laughing at her mother. 

Earlier, Louise competed in events at the three-day Sandringham Horse Driving Trials. 

It was the first time she has competed at Sandringham – the former home of her grandfather, the late Prince Philip who encouraged her to take up the sport.

Louise, who is currently studying English Literature at St Andrew’s University, made her eventing debut three years ago. 

The Sandringham trials were started in 1982 by Prince Philip, who wanted to bring one of his favourite sports to one of his favourite places and it always takes place over the weekend after Royal Ascot.