“I love Edward and Sophie!” another said.
Lady Louise Windsor wore a jacket that once belonged to Prince Philip, in a bittersweet nod to the late Duke of Edinburgh.
Fans praised the young royal, who also inherited a carriage and ponies from the Duke of Edinburgh, to honour their shared hobby.
One fan said of Prince Edward’s daughter: “A confident and beautiful Lady Louise! She reminds me so much of a young QEII.”