On May 31, 1910 the Basque-themed opera Mirentxu, with music by Jesús Guridi and libretto by Alredo Echave, premiered in the Teatro Campos Elíseos in Bilbao. It actually premiered as a zarzuela, but was transfomred into an opera in two acts and an epilogue in 1912.

It’s an intense Romantic tale of a love triangle involving three principal characters, Mirentxu,  Raimundo, and Presen,  with Mirentxu ultimately representing the tragic heroine of the piece.

See Natalie Morel Botrora, “Mirentxu, idylle lyrique basque en deux actes” (in French).