Well, it’s whatever one properly calls the daughter of a Duke.  It may be just “Lady Cambridge” for the time being. As an American, I wouldn’t know. I didn’t plan this (honestly!) but I happened to arrive at Paddington Station a half-hour after that the announcement that the Duchess of Cambridge had given birth. I was within a block of the Lindo Wing of St. Mary’s Hospital, and the celebration was just beginning.

Pink banners fluttered from the fence in front of the hospital.

Pink party hats started appearing.

Reporters interviewed fanatical royal watchers who had been camped out for days or weeks.

Welcome, baby Cambridge!