Prince George, now 13, has officially entered his teenage years with a new birthday portrait released by the royal family.The image captures him smiling at Kensington Palace, taken shortly after Trooping the Colour.Born in 2013, he is third in line to the throne but has moved up the succession order with siblings Princess Charlotte and Prince Louis.This year marks his transition to Eton College's 'F-Block' (year 9), where he'll live away from home for the first time.The prince is being gradually introduced to royal duties while maintaining a private childhood.Recent public appearances include Wimbledon, RAF Coningsby, and Snowdon with his family.Described as thoughtful and shy, George enjoys sports and art.His father, Prince William, noted his disciplined nature compared to younger brother Louis.The portrait underscores the royal family's balance between public obligations and personal life for the future king.