Popsugar Celebrity The British Royals Royal Baby Traditions 10 Royal Baby Traditions You Might Not Know About 31 May 2018 by Stacey Nguyen View On One Page Photo 8 of 10 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 8 The Royals Need to Officially Register Their Babies, Too Royals, just like the rest of the English public, need to register their birth with the government within 42 days. Previous Next Start Slideshow The British RoyalsRoyal BabyPrincess DianaKate Middleton