Although the vast majority of Romero's libretti were written with Guillermo Fernández-Shaw, he also collaborated with other librettists, most notably with José Tellaeche for Pablo Luna's 1941 zarzuela, Calatravas.
Pablo Picasso | Pablo Neruda | Luna | Pablo Casals | Juan Pablo Montoya | Luna (band) | Juan Luna | Pablo Fanque | Pablo Milanés | Bigas Luna | Pablo Alborán | Antonio Luna | Pablo Escobar | Pablo Puyol | Pablo Palazuelo | Luna Park | Juan Pablo Pérez Alfonso | Diego Luna | San Pablo | Petey Pablo | Pablo Márquez | Pablo Cruise | Pablo Armando Fernández | Pablo | Luna Park, Buenos Aires | Augustus Pablo | Pablo Trapero | Pablo Sandoval | Pablo de Olavide University | Pablo Curatella Manes |