Obviously, most people have forgotten that William and his brother, following their father's instructions, filled in "Wales" on their school papers in the blanks asking for their surname, and continued to use "Wales" as a surname during their military careers.

The same people have forgotten that when they first started school, George, Charlotte and Louis used "Cambridge" as a surname, "upgrading" to "Wales" when their father received his new title.

Lord Ivar should know all that. He should also know that it is customary for non-royal peers to use their titles as surnames and to sign legal documents that way. Indeed, his own father signed "Milford Haven". (I can't remember which royal wedding it was, but I saw a photo of the license, which was signed by close to two dozen close relatives, and among the signatures were: Milford Haven, Nada Milford Haven (wives and widows of peers use their first name before the title, as do courtesy peers), Snowdon, David Linley.

Many of the people who are crying "Sussex isn't their surname" are the same ones crying "They're no longer royals". Well, if they're no longer royals, then they aren't doing anything wrong using Sussex as their surname.

And it's hypocritical to get annoyed about TOW's objections to being addressed by her maiden name and then have an attack of apoplexy when the media refers to "Kate Middleton".