In Elena Poniatowska’s novel Querido Diego, te abraza Quiela, readers detect a connection to the historical context of Paris during the early twentieth century and the life of Diego Rivera with Angelina Beloff. Since it is known that Poniatowska created this fictional account after having read Bertram Wolfe’s biography of Diego Rivera, this study focuses on the actual, physical letters in archive, consulted by Wolfe, to reflect on historical evidence and fictional creation. This essay posits that different narratives emerge when each source is studied separately, and suggests how our comprehension of fiction can be altered after reviewing these historical documents