Newlyweds Meghan Markle and Prince Harry may or may not have royal babies down the line, but should they have any daughters, their little girls will not inherit their titles. Apparently, their Duke and Duchess of Sussex, Earl and Countess of Dumbarton, and Baron and Baroness Kilkeel appointments can only be passed down to sons, People reports, because of the rules governing peerage in the UK. If Markle and Harry only have girls, their titles will die out.
People points out that changes to the legislation have been made before, with the Succession to the Crown Act 2013 making it so birth order determined the succession to the throne, not gender. That's what allowed Princess Charlotte to remain fourth in line to the throne, and her baby brother Prince Louis fifth. That act, of course, only pertains to the future king or queen of the UK.
This peerage rule that will affect Markle and Harry's future potential daughters also affects anyone with a title in the UK — meaning in some cases, inheritance of land has gone to distant male relatives over daughters in the family. People points out that a Daughters’ Rights organisation has been trying to advocate for change for years. As recently as 2015, Parliament was allegedly trying to put a Succession to the Peerage bill on the floor, though at this point, nothing correcting the old rule has been passed.