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.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
John Amory Lowell
Hon.
John Amory Lowell (November 11, 1798 – October 31, 1881) was an American businessman and philanthropist from Boston.
He became the sole trustee of the Lowell Institute when his first cousin, John Lowell, Jr. (1799–1836), the Institute's endower, died.
(Lowell 1899, pp 117–118)
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.
Guillaume Wittouck
Guillaume Wittouck( 1749- 1829) was a Belgian lawyer and High Magistrate.
He was the Grandfather of industrialist Paul Wittouck.
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.
Augustus Lowell
Augustus Lowell (January 15, 1830 – 1900) was a businessman and philanthropist from Massachusetts.
A member of the Brahmin Lowell family, he was born in Boston to John Amory Lowell and his second wife Elizabeth Cabot Putnam.
His great-grandfather, John Lowell, was among the first Judges for the newly created federal courts, appointed by Presidents George Washington and John Adams.
Augustus' elder brother, Judge John Lowell, would be appointed to hold the same seats held by their great-grandfather, by Presidents Abraham Lincoln and Rutherford Hayes.
Lyon Cohen
Lyon Cohen( 1868–1937) was a Polish- born Canadian businessman and a philanthropist.
He was the grandfather of singer/ poet Leonard Cohen.
John Westley
Rev. John Westley( 1636 – 78) was an English nonconformist minister.
He was the grandfather of John Wesley( founder of Methodism).
Publius Vitellius the Elder
__NoToC__ Publius Vitellius, grandfather of the emperor Vitellius, was a Roman eques who lived during the time of Augustus.
He was a procurator in the time of Augustus.

Question: Who is the paternal grandfather of Augustus Lowell?