In 2017, Lena’s elder cousin Isla Phillips, then five, first wore the festive red coat for the annual Sandringham Christmas stroll.
Isla, now 11, and her sister Savannah, 12, are the daughters of Zara’s brother Peter Phillips and his ex-wife Autumn Kelly.
They are the first cousins of Mike and Zara’s three children — Mia, eight, Lena, four, and Lucas, one.
The coat in question is the Monsoon “Elizabeth Coat in Red”. The description says: “Featuring a detachable faux fur collar in leopard print, our Elizabeth coat will ensure her style stands out all season.