Bernal Diaz del Castillo, who is their ministry agent in the time of Cortez' conquests, is best known for writing The Conquest of New Spain, one of the main first person accounts and records of Cortez' conquest of Mexico. He describes the historical figures and events depicted in this episode.
When Ernesto says Lola phoned with relevant information, Lola confirms "I made the call" ("Yo hice la llamada" in Spanish). Actress Macarena García who plays Lola, had just premiered the film Holy Camp! (2017) ("The Call").