ウィリアム（ケンブリッジ公）さんのインスタグラム写真 - (ウィリアム（ケンブリッジ公）Instagram)「Happy Birthday to Her Majesty The Queen! The Queen celebrates two birthdays each year: her actual birthday on 21 April and her official birthday on (usually) the second Saturday in June. Official celebrations to mark the Sovereigns' birthday have often been held on a day other than the actual birthday, particularly when the actual birthday has not been in the summer. King Edward VII, for example, was born on 9 November, but his official birthday was marked throughout his reign in May or June when there was a greater likelihood of good weather for the Birthday Parade, also known as Trooping the Colour. 📷PA @TheRoyalFamily #TroopingtheColour #BuckinghamPalace #QBP2019」6月8日 23時01分