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.
Edmund Butler, 2nd Viscount Mountgarret
Edmund Butler, 2nd Viscount Mountgarret (c. 1562 – 1602), was the son of Richard Butler, 1st Viscount Mountgarret and Eleanor Butler.
Lyon Cohen
Lyon Cohen( 1868–1937) was a Polish- born Canadian businessman and a philanthropist.
He was the grandfather of singer/ poet Leonard Cohen.
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
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.
Helen Butler
Helen Butler (died 28 January 1631), also known as the Honorable Helen Butler, was the daughter of Edmund Butler, 2nd Viscount Mountgarret and Grizel FitzPatrick.
She married her second cousin Walter Butler, 11th Earl of Ormond.
Their common great-grandfather was Piers Butler, 8th Earl of Ormond.
She had three sons and nine daughters:
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.
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.

Question: Who is Helen Butler's paternal grandfather?
Answer: Richard Butler, 1st Viscount Mountgarret