Queen Camilla held a glitzy reception tonight, the same day that King Charles returned to public work. The Queen, 76, is Colonel of the Grenadier Guards and welcomed former soldiers and their families to Clarence House tonight for a reception, her first engagement as patron of the Colonel’s Fund. The fund supports Grenadiers who have suffered serious physical or mental injury while on operational service, and their families. Her Majesty wore the jewelled Grenadier Guards badge that belonged to Queen Elizabeth II. The badge is set with diamonds, sapphires, rubies, and emeralds. The cypher of th…