Interestingvery interesting Thank you One of my European ancestors who was John of Gaunthad illegitimate children by Katherine Swynford but then they were legitimated by Royal Assent and then a following marriage Since John of Gaunt was a Prince of England would this have made his children Princes and Princesses of England given their legitimation IN Jazmins case IF I use IF in a very speculative form her parents were to marry would she acquire the title of Princess of Monaco Also I understand that she is NOT in the current line of succession but if her father NEVER had any other children would it not be possible for him to just write up some documant given Royal Assent to her succession In my tribe the legitimate children of a Chief are automatically given upon birth the title of Prince or Princess however the first born regardless of gender is made the Hereditary ChiefChieftess The illegitimate children of a Chief are given the honorific of The Honorable which is the equivalent usage for the children of our President or Vice President The illegitimate children of any other Royal or Noble may hold the predicate of our tribe for example Ms Ava Kingston of