By Chloe Stewart In a move that surprised some, Prince Harry and Meghan Markle referred to children Archie, four, and Lilibet, two, by their new names on their new website, Sussex.com. The children have both taken on the surname Sussex since their grandad King Charles III’s Coronation, and the new website reflects as such – similarly to how Harry was referred to as Captain Wales during his time in the army. This is breaking with 64-year tradition of adopting the surname, Mountbatten-Windsor. A royal insider told The Times that including the children’s new names is a ‘big deal’ as it ‘unifies’ …