Andrew, 65, spent time with Bea, 37, and his granddaughter Sienna, four, in the Royal Mews at Windsor before they headed on to the castle’s grounds.

Andrew Mountbatten-Windsor riding a horse on the Windsor Estate.
Andrew Mountbatten-Windsor rides a horse at WindsorCredit: Simon Jones
 

Princess Beatrice, her daughter Sienna, and Andrew Mountbatten-Windsor on a morning ride at Windsor Castle.
Princess Beatrice with daughter Sienna at Windsor Castle for a morning rideCredit: Bruce Bennett
 

Prince Andrew and Princess Beatrice at Wimbledon.
Disgraced Andrew with daughter Princess Beatrice in 2011Credit: Jamie McPhilimey – The Sun
The former Duke of York rode ahead of Beatrice while she walked beside her mounted daughter — whose horse was led by a groom.

They spent more than 45 minutes on Saturday enjoying Home Park in the shadow of Windsor Castle.

It is thought ­Beatrice also spent time at Royal Lodge, which Andrew is soon to vacate.

It comes after we reported that she snubbed him, right, by skipping Christmas at the ­mansion to spend it at Sandringham with King Charles, Queen Camilla, William and Kate.

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Andrew himself is now only weeks away from moving to the Norfolk estate to begin his exile after handing back his Royal Lodge lease.

He visited Marsh Farm there last week to check out renovations and is expected to temporarily move to nearby Wood Farm cottage ahead of his 66th birthday next month.

Beatrice’s show of support comes amid claims that Princess Eugenie, 35, has severed contact with her dad.

However, The Sun understands that she has been to see him in recent weeks.

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A friend insisted: “It is completely untrue she has cut him off.

“She has seen him several times this year and is supportive.

“She is there for her father whenever he needs her.”

Princess Beatrice and Andrew Mountbatten-Windsor horseback riding at Windsor Castle.
The former Duke of York rode ahead of BeatriceCredit: Bruce Bennett