I think it is mostly racing background:
-IBN FAKHRI, her great-great-great grandfather (fathers side) was a racehorse
-COMET her great-great-great grandfather (mothers side), Died 1964
Comet, a horse highly valued in Poland and noted for great trotting action. It was fortunate that his quality was recognized early as he died in 1964 at age 11, leaving behind only 86 foals (a number which includes the in utero exports to various countries). Eleven of his get imported to the US or Canada have captured 25 National honors, most in the Park division, and include *Meczet who has National Championships in Formal Driving, Formal Combination, Park and Costume.
Hope this helps your search,
Some of Comet´s daughters include Warmia (dam of US National Champion Mare *Wizja), Engracia (dam of European Champion Engano), Eunice (dam of Polish National Champion Stallion *Eukaliptus and the sires Euben and *Eunizar) and Arba (dam of European Champion Stallion Arbor and Arra who not only won the Triple Crown of Derby, Oaks and Criterium but was Polish National Champion Mare and European National Champion Mare). Comet´s son Grojec was a popular in England while Pohaniec has widespread influence in Sweden.
Comet is considered the most important post-war stallion in Poland. Bred by Nowy Dwór stud, his daughters left an indelible mark in Polish breeding that remains today. Of his sons, the sire line was very successfully re-introduced through the lease of his grandson *Probat from Sweden. Noted for producing beauty, type, & action. 16 of his sons were imported to the US.