Lady Louise Windsor, daughter of Prince Edward and Sophie, Duchess of Edinburgh, has reached an important milestone, celebrating her 21st birthday on Friday, November 8. Born prematurely in 2003 under challenging circumstances, Lady Louise has grown into “a poised and accomplished young woman who balances her royal heritage with a refreshingly grounded approach to life,” according to a royal insider. Lady Louise’s ambitions extend beyond academics. She’s involved with the University Officers’ Training Corps and has expressed interest in a military career, potentially following her relatives in…