Anne, who turned the milestone age on August 15, has two biological children, Peter and Zara, from her first marriage to Captain Mark Phillips; they married in 1973 and divorced in 1992. That same year, Anne married Vice Admiral Sir Timothy Laurence, but he has no children, and, therefore, Anne has no stepchildren.

August is kind of a big deal for Princess Anne. Sure, she’s always busy as one of the most hardworking members of the royal family (seriously, no one clocks in more royal engagements than her) but that’s not what I'm talking about.