An A. B. Coxe Stable foal of 1917, Isotta was a product of the cross of Peter The Great-The Zombro Belle. Until 1943 Isotta was a top producing mare at the Hanover Shoe Farms. She is credited with seventeen record holding foals; among them, Zombro Hanover, Irene Hanover, Dillon Hanover and Gilt Hanover.
Published in the Harness Racing Museum's 1994 book, The Immortals