April 23 may belong to the new royal baby, but there’s a bound to be a spring in his big sister’s step too.

That’s because Princess Charlotte, at the grand age of 2, has made history by being the first British royal princess to not lose her place in the line of succession upon the birth of a younger male sibling.

Traditionally, a female royal would be bypassed by a younger brother, which is why Prince Andrew and Prince Edward and their respective children are closer to the throne than Princess Anne, who is older.

But with the Succession to the Crown Act of 2013, male royals born on or after Oct. 28, 2011, no longer take precedence over their older sisters. It’s a modern adjustment that has already been put into practice, as two of the Duke of Gloucester’s young grandsons trail their big sisters.