One user wrote on X: “Oh no!! Put the hoods down!! Lady Louise and Timothy Laurence got the short straw!!”

Another one said: “She isn’t put out by a little rain.”

A third fan said: “The tops are up on the carriages and landaus– but Lady Louise Mountbatten-Windsor is exposed to the elements.”

While a forth person commented: “Lady Louise is a horsewoman – she won’t be bothered by a bit of drizzle and seems like a nice girl who wouldn’t expose her venerable cousin to the elements!”

Lastly, a fourth one opined: “Duke of Kent is 88 years old. Possible that Lady Louise chose to sit in the rain rather than him. Respect your elders and all that.”

Duchess Sophie’s daughter was later pictured sitting next to her mother when the rain got heavier.

The 20-year-old university student did not attend last year’s celebrations due to her exams.