Completed the following sentence: The unit was created on November 26, 1936, at the
Madrid front, from the "Ferrer", "Toledo", "Sigüenza", "7th Confederate Militias", "Orobón Fernández" and "Juvenil Libertario" battalions of the Palacios Column. Miguel Palacios Martínez fue nombrado comandante de la 39a Brigada Mixta, con el anarco-sindicalista Julián Adrados Almazán como comisario político.