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).
Arnulf, Count of Holland
Arnulf, also known as "Aernout" or "Arnold" succeeded his father in 988 as Count in Frisia.
He was born in 951 in Ghent and because of this he is also known as "Arnulf of Ghent".
Arnulf was the son of Dirk II, Count of Holland and Hildegard, thought to be a daughter of Arnulf of Flanders.
Napoléon Louis Bonaparte
Napoléon- Louis Bonaparte( 11 October 1804 – 17 March 1831), also known as Louis II of Holland, was the King of Holland, reigning for less than two weeks in 1810.
A son of Louis Bonaparte( Louis I of Holland) and Hortense de Beauharnais, his father was the younger brother of Napoléon I and reigned as King of Holland from 1806 to 1810, while his mother was the daughter of Josephine de Beauharnais, Napoléon's first wife.
He was the older brother of Louis Napoleon Bonaparte, future Emperor Napoleon III.
Lyon Cohen
Lyon Cohen( 1868–1937) was a Polish- born Canadian businessman and a philanthropist.
He was the grandfather of singer/ poet Leonard Cohen.
Adelina of Holland
Adelina of Holland  was possibly a daughter of Arnulf, Count of Holland, and Lutgardis of Luxemburg.
She married firstly Baldwin II, Count of Boulogne (with whom she had Eustace I of Boulogne), and secondly Enguerrand I of Ponthieu.
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.
Lutgardis of Luxemburg
Lutgardis of Luxembourg, also known as Liutgardis, Liutgarde and Lutgard,( 955 – ca. 1005 or possibly later) was a countess consort of Holland by marriage to Arnulf, Count of Holland.
She was the regent of Holland from 993 until 1005 during the minority of her son Dirk III of Holland.
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.

Question: Who is the paternal grandfather of Adelina Of Holland?