Happy 29th Birthday, HRH Prince William! [PHOTOS]

29 years ago today, Prince William Arthur Philip Louis was born at St. Mary’s Hospital in London.  After 16 hours of labor,  Princess Diana gave birth to the second-in-line who would later marry the coolest commoner EVER.  This year, William will be spending his birthday working up in Anglesey, according to People.  He and the Duchess will remain at their farmhouse, no doubt getting ready for their North American tour.

Seems like it was only yesterday Will threw himself a 21st birthday bash at Windsor Castle.  The theme was “Out Of Africa” and Wills paid most of his attention to friend Jecca Craig.  I wonder if Catherine pulls a Kelly Kapowski these days when she sees Craig: “See the ring????”

PHOTOS: Catherine Middleton Finally Marries Her Prince

Take a spin through our gallery to see Wills through the years, and check out video of the day Prince William was born after the jump.