El Hijo del Villano III

On May 25, 2019, El Hijo del Villano III participated in his first major CMLL tournament, the Puebla version of their annual Torneo Nacional de Parejas Increíbles tournament where a rudo and a tecnico are forced to team together for the tournament. El Hijo del Villano III was teamed up with one of CMLL's main event performers, Carístico. The mismatched duo defeated Atlantis and Vangellys in the first round, Audaz and Sansón, before ultimately losing to Niebla Roja and El Terrible in the semi-final round. The second-generation rivalry between the Villano and Atantis family led to El Hijo del Villano III and Atlantis Jr. facing off in their first one-on-one match on July 5, 2019, a match that ended in a double count out as both wrestlers were fighting outside the ring for too long.

He began training in the CMLL wrestling school in 2018, receiving training and guidance from Arkangel de la Muerte, Virus, Último Dragoncito and Último Guerrero, building on the training he received from his father and uncle Villano IV prior to his in-ring debut. He made his CMLL debut on their 2018 Christmas show, winning his debut match alongside his uncle Villano IV and Mephisto as they defeated Atlantis, Black Panther and Blue Panther Jr.. During the build to his debut CMLL presented him as a natural rival to Atlantis Jr., mirroring the rivalry between Villano III and Atlantis. El Hijo del Villano III made his first appearance as a major CMLL show only a week after his in-ring debut for the company as he, Villano IV and El Felino lost to Los Gorilas del Ring (Kraneo and Volcano) and El Hijo de LA Park at CMLL's annual Sin Piedad show.

El Hijo del Villano III made his first in-ring appearance at the age of just 13, working an exhibition match on the undercard of a show honoring his father's 40th wrestling anniversary. Once he turned 15 and could be licensed by the boxing and wrestling commission he made his official debut on December 25, 2013. In subsequent years he won the Mexican State Tag Team Championship with his brother Villano III Jr. as well as the Mexican State Trios Championship with his father and his brother.

El Hijo del Villano III (Spanish for "The Son of Villano III; born November 26, 1999) is a Mexican masked professional wrestler who is currently working for Consejo Mundial de Lucha Libre (CMLL) as a rudo or heel (the antagonists in pro wrestling). He is a third-generation luchador son of Villano III (real name Arturo Díaz Mendoza) and La Infernal (Luz Lorena Velarde Murillo), and grandson of Ray Mendoza. His older brother is also a professional wrestler, known as Villano III Jr., his uncles include luchadors Villano I, Villano II, Villano IV, Villano V and he is the cousin of Villano V Jr. and Rokambole Jr.

El Hijo del Villano III was born on November 26, 1999, son of professional wrestlers Arturo Díaz Mendoza (known under the ring name Villano III) and Luz Lorena Velarde Murillo (La Infernal). His older brother, known simply as Villano III Jr. was born a year prior, on July 11, 1998. is birth name has not been revealed to the general public, which is the tradition in Lucha Libre where newsoutlets do not publish the real names of any masked wrestler who has not lost their mask in a match. Four of his uncles also worked in professional wrestling, all using the ring name "Villano"; José de Jesús (Villano I), José Alfredo (Villano II), Arturo Raymundo Mendoza Jr. (Villano V), and Thomas (Villano IV).