Queen Elizabeth II has a portrait of Prince George displayed prominently in her sitting room at Balmoral Castle Credit: Michael Middleton/Kensington Palace via Getty Image

Queen Elizabeth II is a proud great-grandmother! A new picture of the monarch in her sitting room at Balmoral reveals that Her Majesty has a portrait of her great-grandson Prince George displayed prominently in her Scottish Highlands home.

The portrait is one from the royal family's photo shoot with Kate Middleton's father, Michael Middleton. It was taken about a month after Prince George's July 22 birth and shows the Duchess of Cambridge cradling her newborn son and standing beside her husband, Queen Elizabeth II's grandson Prince William.

As seen in the picture of the Queen at Balmoral, the portrait has a special place on a side table in Her Majesty's sitting room, which also features portraits of the Queen's great-great-grandmother Queen Victoria, a young Prince Albert, and granddaughters Princess Eugenie and Princess Beatrice.

As previously reported, Prince William and his wife actually spent some time at Balmoral recently. The couple were joined at the castle by New Zealand Prime Minister John Key and his family, who spent two days with the Queen and her family.

According to the New Zealand Herald, Prime Minister Key accompanied the Duke of Cambridge on a grouse shoot, while Middleton enjoyed a walk through the woods with Key's daughter, Stephanie.