The soprano's debut outside Bulgaria took place in Bilbao, where she sang the title role in Lucia di Lammermoor.
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Pendatchanska performed the title role of Esclarmonde at Teatro Regio in Turin in November 1992 at the age of 22, at which time she was even younger than that of Sybil Sanderson, who created the infamously difficult role at age 24.
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During the 1997–2001 operatic seasons Pendatchanska sang the role of Elisabetta in Roberto Devereux (Turin and Naples), Adina in Adina (Pesaro), Suor Angelica in Suor Angelica (Lucca), Luisa in Luisa Miller (Naples and Berlin), and in Ermione (Santa Fe and New York).