 However, Halecki refutes this view, contending that Jadwiga matured quickly and her personality, especially her charm and kindness, only served to strengthen her position.Already in late 1384 she intervened on Duke Vladislaus's behalf to reconcile him with her mother's favourite, Nicholas I Garai.The Polish lords did not want to accept Jadwiga's fourteen-year-old fiancé, William of Habsburg, as their sovereign.