Members of European Royal Families on Instagram: "The scene in The Crown in which Queen Mary inclines in a curtsey before her granddaughter, Her Majesty Queen Elizabeth II, may not be preserved in the annals of documented history, yet it remains entirely plausible and firmly consonant with the customs of the British Crown. Within the ancient and unyielding traditions of the monarchy, deference to the sovereign transcends familial affection or personal sentiment; even members of the Royal Family