The Duchess of Cambridge gave birth to a baby girl at 8:34am (BT) on May 2. The baby weighs 8lbs 6oz and the Duke of Cambridge was present for the birth in the Lindo Wing of St. Mary’s Hospital. My interview with Today.com discusses the experiences of past royal second children. In the past century, the press has often portrayed ‘the spare’ as the more spontaneous royal sibling, enjoying wealth and privilege without the responsibilities of kingship. Over the long course of royal history, however, there has always been the distinct possibility that a second royal child might succeed to the throne. The most recent “spare” to become the reigning monarch was Queen Elizabeth II’s father, King George VI.