Since December 20 marks the 60th anniversary of Clark’s marriage to his fourth wife, Lady Sylvia Ashley (for more on her, read here), we’ll devote this week’s Gossip Friday to her and her previous marriage to another man of Hollywood royalty: Douglas Fairbanks, Sr. (Anyone else find it a bit twisted that before she married Clark Sylvia was married to the father of Douglas Fairbanks Jr., who was married to Joan Crawford when Joan was having an affair with Clark? That’s a sick little circle…) From June 1935: An eye witness to the arrival of Douglas Fairbanks, Sr. , Lady Ashley and party at Miami Beach, reports that Doug had more…