[1] A 2005 book[2] by Gaby Franger and Rainer Huhle traced Kahlo's genealogy, and stated that "despite the legend propagated by Frida," Guillermo had Jewish Hungarian roots, but was born to Lutheran parents who "came from families accommodated in Frankfurt and Pforzheim.

[citation needed] José Vasconcelos published Kahlo's work involving the churches in 1923 through Mexico's Ministry of Education.

[5] Kahlo married Mexican-born María de los Dolores Eleuteria Clotilde Cardeña Espino in August, 1893.

[6] The night she died giving birth to their third child, he asked Antonio Calderón for his daughter Matilde's hand in marriage.

Frida once commented that, in her childhood, she would sometimes be present when her father suffered from epileptic seizures and would give him aid.