King Gold is the second foal of the unraced Miss Gandelia (Kingsalsa) and one of her two winners from four reported foals. She is a full sister to the winner Queensalsa, multiple Group-placed and second in the Gr.2 Prix Robert Papin as a two-year-old, and a half-sister to Queen America (American Post), winner of the Listed Prix des Jouvenceaux et des Jouvencelles and third in the Gr.3 Prix du Calvados, and to Zaliana (Daliapour), who won seven races.

Second dam Gandelia (Ganges) won three times and has six winners, headed by Queen America and Queensalsa. Her daughter Queensalsa produced Whip And Win (Whipper), winner of the Listed Prix Isonomy and placed at Group 3 level, who in turn is the dam of Pas De Soucis (Footstepsinthesand), winner of the Listed Prix de Saint-Cyr and third in the Kentucky Downs Ladies Turf S., then a Grade 3. Zaliana is the dam of Zuri Chop, a winner placed several times at Listed level. Gandelia is a half-sister to Bamarok (Loup Solitaire), who won ten races on the Flat and over jumps, two of them Listed hurdles.

Third dam Nadelia (Nadjar) won as a two-year-old and is related to King's Winner (Legend Of France), third in the Listed Derby de l'Ouest.

This is the family of the multiple Group 1 winners and sires Sulamani (Hernando) and Dream Well (Sadler's Wells).

Miss Gandelia has an unraced 2-year-old filly by Spanish Moon named Nadelia.