She married a member of the Polish aristocracy, and retired from the stage for six years from 1896 to 1902.
After her hiatus, she sang initially in Russia; it was not until 1909 that she returned to her native Italy to sing.
Boronat was noted for a voice of great beauty and clarity, and exceptional technical ability, coupled with sensitive musicianship.
She was particularly associated with the roles of Rosina in The Barber of Seville, Violetta in La traviata, Elvira in I puritani, and Ophélie in Hamlet.
These include works by Alexander Alyabyev, Bellini, Bizet, Donizetti, Flotow, Pietro Giannelli, Gounod, Mikhail Ivanov, Meyerbeer, Tosti, Verdi, and Redento Zardo.