Queen Elizabeth II is the first British monarch to reach the age of 90. Elizabeth has reigned for 64 years and 75 days. She's travel over one million miles during her reign. After cutting back, she had over 175 official engagements last year. The Queen is mum to 4, granny of 8, and great-granny to 5. You'll find books on the Queen and her other royal relatives in the AFPLS system.