Today marked the funeral of Queen Elizabeth II, a ceremony that marked the end of 10 days of official mourning for the late monarch and was attended by 2,000 people from around the world. It truly marked the end of an era: Elizabeth II was on the throne for 70 years, longer than anyone in UK history, overseeing decades of history. For most Britons, she was the only queen they’ve ever known. But now, attention will turn to her son and successor, King Charles III, who faces challenges ahead as he inherits a role he’s waited for his entire life. Charles was…