Vandeek is the fifth foal of the placed Mosa Mine (Exceed And Excel), and all five of her runners have won. Mosa Mine is a three-parts sister to the champion sprinter Anabaa.

Second dam Baldemosa (Lead On Time) won in France and had four more winners, none of them with black type. She is a half-sister to Balbonella (Gay Mecene), winner of the Prix Robert Papin, then a Group 1, and to the Listed winner Bamwhite (Carwhite). Balbonella is the dam of Always Loyal, winner of the Gr.1 Poule d'Essai des Pouliches, of Anabaa (Danzig), winner of the Gr.1 July Cup and the Gr.1 Prix Maurice de Gheest and a sire, of the sire Key Of Luck, a Group 3 winner and Group 1-placed, and of the Listed winner Country Belle, and the grandam of the Group 2 winner and sire Country Reel.

Third dam Bamieres (Riverman) was twice placed in France. Her daughter Balouchina (Rainbow Quest), a winner, is the grandam of Baine, a Listed winner and second in the Gr.1 Poule d'Essai des Pouliches, and of the Group 1-winning hurdler Bapaume.

Mosa Mine has a colt foal by Starspangledbanner.