King Charles shares a personal message to mark the 100th anniversary of Queen Elizabeth's birth on Tuesday, 21 April 2026 🇬🇧🇦🇺👑💬💐 #RoyalFamily #KingCharlesIII #BuckinghamPalace #QueenElizabethII #QueenElizabeth100Years https://rightroyalroundup.com.au/2026/04/21/king-charles-iii-commemorates-queen-elizabeth-ii-100th-birthday/