Birth Name: Sergio Castaneda Brando (according to this obituary of his mother)
Place of Birth: [possibly] Los Angeles, California, United States
Date of Birth: February 26, 1961
*father – English, Irish, German, Dutch, French Huguenot, Welsh, Scottish
*mother – Mexican
Miko Brando, also credited as Miko C. Brando, is an American actor. He is the son of actors Marlon Brando and Movita Castaneda (born Maria Luisa Castaneda). His sister is actress Rebecca Brando. Among Miko’s half-siblings are/were model Cheyenne Brando. His half-nephew is model Tuki Brando. His aunt, Jocelyn Brando, was also an actress.
Miko’s father’s ancestry included English, as well as Irish, German, Dutch, French Huguenot, Welsh, and Scottish. His maternal grandparents were Mexican.
Miko’s paternal grandfather was Marlon Brando (the son of Eugene Everett Brando and Maria B. Holloway). Marlon was born in Omaha, Douglas, Nebraska. Eugene was born in Rome, Oneida, New York, the son of James H. Brando and Nancy Hannah Joslin/Jocelyn. Maria was the daughter of Robert Holloway and Catherine/Katherine E. Thompson.
Miko’s paternal grandmother was Dorothy Julia Pennebaker (the daughter of William Johnson Pennebaker and Bessie Grace Gahan). Dorothy was born in Grand Island, Hall, Nebraska. William was the son of William Pennebaker and Sarah Elizabeth Salmon. Bessie was the daughter of Myles Joseph Gahan, who was born in Dublin, Ireland, and of Julia A./E. Watts, who was born in Ohio, to English parents.
Miko’s maternal grandfather was named Aurelio Castaneda. Aurelio was born in Oaxaca de Juárez, Oaxaca.
Miko’s paternal grandmother was named Luisa Iglias.
Sources: Genealogy of Miko Brando (focusing on his father’s side) – https://www.geni.com
Genealogy of Miko’s paternal great-grandmother, Maria B. Holloway (focusing on her father’s side) – http://worldconnect.rootsweb.ancestry.com
Remarriage record of Miko’s paternal great-grandmother, Maria B. Holloway, to William A. Gleason – https://www.familysearch.org