John Westley
Rev. John Westley( 1636 – 78) was an English nonconformist minister.
He was the grandfather of John Wesley( founder of Methodism).
Henry Bryant (naturalist)
Henry Bryant( May 12, 1820 – February 2, 1867) was an American physician and naturalist.
He was the grandfather of Henry Bryant Bigelow.
Kaya Alp
Kaya Alp was, according to Ottoman tradition, the son of Kızıl Buğa and the father of Suleyman Shah, who was, in turn, the grandfather of Ertuğrul, and the great grandfather of the Ottoman Empire founder, Osman I.
Pilar Bardem
María del Pilar Bardem Muñoz (born 14 March 1939) better known as Pilar Bardem
is a Spanish film and television actress.
She is a younger sister of the renowned film director Juan Antonio Bardem and the mother of Academy Award-winner Javier Bardem.
Born to performers Rafael Bardem and Matilde Muñoz Sampedro in Seville, Pilar began her screen career in 1965.
She was a regular in the television series
"Compuesta y sin novio" (1994), "Hermanas" (1998), "El Inquilino" (2004), and "Amar en tiempos revueltos" (2005–2007).
Bardem is the recipient of the Goya Award for Best Supporting Actress, the Premios ACE for Best Supporting Actress, the Valladolid International Film Festival Award for Best Actress, and two Spanish Actors Union Awards for her performances.
Lyon Cohen
Lyon Cohen( 1868–1937) was a Polish- born Canadian businessman and a philanthropist.
He was the grandfather of singer/ poet Leonard Cohen.
Prithvipati Shah
Prithvipati Shah( ?–1716) was the king of the Gorkha Kingdom in the Indian subcontinent, present- day Nepal.
He was the grandfather of Nara Bhupal Shah.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
Fujiwara no Nagara
, also known as Fujiwara no Nagayoshi, was a Japanese statesman, courtier and politician of the early Heian period.
He was the grandfather of Emperor Yōzei.
Guillaume Wittouck
Guillaume Wittouck( 1749- 1829) was a Belgian lawyer and High Magistrate.
He was the Grandfather of industrialist Paul Wittouck.
Carlos Bardem
Carlos Encinas Bardem (born 1963) is a Spanish actor.
He is the son of actress Pilar Bardem and brother of actors Mónica and Javier Bardem (known for the 2007 film "No Country for Old Men").
Carlos Bardem won the 2008 Spanish Actors Union's "Newcomer Award for a Male" (Categoría Masculina) for "La zona".

Question: Who is Carlos Bardem's maternal grandfather?
Answer: Rafael Bardem