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.
Lyon Cohen
Lyon Cohen( 1868–1937) was a Polish- born Canadian businessman and a philanthropist.
He was the grandfather of singer/ poet Leonard Cohen.
Şehzade Mehmed Selaheddin
Şehzade Mehmed Selaheddin (12 August 1861 – 29 April 1915) was an Ottoman prince, the only son of Sultan Murad V, and his second wife Reftarıdil Kadın.
John Westley
Rev. John Westley( 1636 – 78) was an English nonconformist minister.
He was the grandfather of John Wesley( founder of Methodism).
Guillaume Wittouck
Guillaume Wittouck( 1749- 1829) was a Belgian lawyer and High Magistrate.
He was the Grandfather of industrialist Paul Wittouck.
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.
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.
Ahmed Nihad
Ahmed Nihad (5 July 1883 – 4 June 1954), 38th Head of the Imperial House of Osman from 1944 to 1954, was the 38th and second post-imperial head of the Imperial House of Osman.
He was born in Çırağan Palace, Ortaköy, on 5 July 1883, as the eldest son of Şehzade Mehmed Selaheddin Efendi, by his wife Naziknaz Hanım, and grandson of
Sultan Mehmed V. He was educated privately.
He was promoted to the rank of colonel of infantry of the Ottoman Army.
Ahmed Nihad Efendi received the honors of the Collar of the Hanedan-ı-Ali-Osman and the Nişan-ı-Ali-Imtiyaz.
He succeeded on the death of his cousin, Prince Abdulmecid Efendi, the last Ottoman Caliph, as Head of the Imperial House of Osman on 23 August 1944, to become the first head of the Ottoman family not to hold the office of Ottoman Caliph since his ancestor Sultan Selim
I was granted this title in 1517.
Had he been the reigning Sultan he would have been Sultan Ahmed IV.

Question: Who is the paternal grandfather of Ahmed Nihad?
Answer: Murad V