Assistent is out of the unraced Anna Kalla (Kallisto) and is the third of her eight foals, one of her three winners and her only stakes performer. He is a half-brother to winners by Jukebox Jury and Tai Chi. Anna Kalla is a full sister to Anna Katharina (Kallisto), winner of the Gr.3 Hamburger Stutenpreis and dam of Ankunft (New Approach), winner of the Listed Weidenpescher Steher Cup, and of the Group 2-placed winner Anspruch. She is also a half-sister to Adrian (Reliable Man), winner of the Gr.3 Fürstenberg-Rennen, and to Attica (Tai Chi), winner of the Listed Henkel Stutenpreis.

Second dam Anna Desta (Desert Style) was unraced and has produced four other winners, notably Adrian and Attica. She is a half-sister to the sire Aspectus (Spectrum), winner of the Gr.2 Union-Rennen, and to Anna Simona (Slip Anchor), a three-time winner in France and Germany. Anna Simona is the dam of Jackfinbar, winner of the Gr.3 Prix de Lutece, Willie The Whipper, winner of the Listed Silver Tankard Stakes and second in the Gr.1 Criterium de Saint-Cloud, and the German Listed winner Anna Magnolia.

Third dam Anna Thea (Turfkonig) won the Gr.3 Hamburger Stutenpreis. Among her descendants are Ardakan (Reliable Man), winner of the Gr.2 Derby Italiano and Group 1-placed, his half-sister Alaskasonne (Soldier Hollow), a Group 3 winner, and Aspectus (Spectrum), a multiple Group winner and runner-up in the Gr.2 German 2000 Guineas. She is also the grandam of Akribie (Reliable Man), winner of the Gr.2 Diana-Trial, and of Great Generation (Holy Roman Emperor), a dual Group 3 winner in Britain.

Anna Thea is the best runner out of Anstandige (Star Appeal), a half-sister to the outstanding broodmare Anna Paola (Prince Ippi), winner of the Preis der Diana (German Oaks), then a Group 2. Group 1 winners descending from Anna Paola include Adayar (Frankel), winner of the Gr.1 Derby.

Behind him come a yearling colt named Atmos and a colt foal, both by Best Solution, and Anna Kalla is in foal to Sea The Moon.