Halla (also listed as "Sonnenglanz") was born in the yard of Gustav Vierling in Darmstadt. Her parents were Helene, a French trotter horse of unknown breeding, and the Standardbred Oberst. Halla was first trained as a steeplechaser before she was discovered by the German Olympic committee.
Halla, a horse known as "Sonnenglanz," was born in Darmstadt, Germany, to Helene, an unknown French trotter, and Oberst, a Standardbred. She began her training as a steeplechaser before being discovered by the German Olympic committee.