David Albert Charles ArmstrongJones, Viscount Linley , known professionally as David Linley, is an English furniture maker and chairman of the auction house Christies UK. The son of Princess Margaret, Countess of Snowdon, and Antony ArmstrongJones, 1st Earl of Snowdon, he is a grandson of King George VI, is 18th in line to succeed Queen Elizabeth II, his maternal aunt, and is the heirapparent to the Earldom of Snowdon.
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Source: Wikipedia