Getty Prince William appeared to be struggling to stay awake during a service at Westminster Abbey on Wednesday. He was back to royal duties just two days after his third child — a baby boy — was born. Despite his sleepy appearance, he reportedly managed to joke with attendees about the heavily anticipated announcement of the new royal's name. The Duke of Cambridge appeared to be struggling to stay awake during a service at Westminster Abbey on Wednesday, just two days after his third child was born — and it suggests the new royal might be keeping him up. His wife, the Duchess of Cambridge, gave birth to a baby boy weighing 8lbs, 7oz at 11.01 a.m.