John Mackay (poet)
John Mackay( 1656–1754), known as( The Blind Piper), was a Scottish Gaelic poet and composer, and the grandfather of William Ross.
Theodora Porphyrogenita (11th century)
Theodora Porphyrogenita ("Theodōra"; AD 980 – 31 August 1056) was Byzantine Empress from 19 April 1042 to her death on 31 August 1056.
She was sole empress regnant from 11 January 1055.
She was born into the Macedonian dynasty that ruled the Byzantine Empire for almost two hundred years.
Theodora became involved in political matters only late into her life.
Her father Constantine VIII was co-ruler of the Byzantine Empire for 63 years then sole emperor from 1025 to 1028.
After he died his older daughter, Zoë, co-ruled with her husbands then her adopted son, Michael V, keeping Theodora closely watched.
After two foiled plots, the princess was exiled to an island monastery in the Sea of Marmara in 1031.
A decade later, the people of Constantinople rose against Michael V and insisted that she return to rule alongside her sister.
After 65 days Zoë married again to Constantine IX, who assumed the imperial responsibilities.
Theodora seemingly retired to a convent after the death of Zoë in 1050.
When Constantine died, the seventy-four-year-old Theodora returned to the throne in the teeth of fierce opposition from court officials and military claimants.
For sixteen months she was a strong empress before being struck down by a sudden illness and dying aged seventy-six.
She was the last ruler of the Macedonian line.
Fred Le Deux
Frederick" Fred" Le Deux( born 4 December 1934) was an Australian rules footballer who played with Geelong in the Victorian Football League( VFL).
He is the grandfather of Tom Hawkins.
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.
Henry Krause
Henry J." Red" Krause, Jr.( August 28, 1913 – February 20, 1987) was an American football offensive lineman in the National Football League for the Brooklyn Dodgers and the Washington Redskins.
He played college football at St. Louis University.
He is the grandfather of Jennifer Krause
He is the great grandfather of Payton Hoeing
Zhao Shoushan
Zhao Shoushan( 12 November 1894 – 20 June 1965) was a KMT general and later Chinese Communist Party politician.
He is the grandfather of Zhao Leji.
Constantine VIII
Constantine VIII ("Kōnstantinos VIII") (960 – 11 November 1028) was the Byzantine Emperor from 15 December 1025 until his death in 1028.
He was the younger son of Emperor Romanos II and Empress Theophano.
He was nominal co-emperor for 63 years from 962, successively with his father; stepfather, Nikephoros II; uncle (by marriage), John I; and brother, Basil II.
Basil II died childless in 1025 and thus left the rule of the Byzantine Empire in Constantine's hands.
Constantine had no interest in politics, statecraft or the military.
His brief reign is said to have been "an unmitigated disaster", sparking "a collapse of the military power of the Empire".
Constantine had no sons, so shortly before his death he married his daughter Zoë to his chosen successor Romanos Argyros.
John Westley
Rev. John Westley( 1636 – 78) was an English nonconformist minister.
He was the grandfather of John Wesley( founder of Methodism).
Abd al-Muttalib
Abd al- Muttalib Shaybah ibn Hashim( c. 497 – 578) was the grandfather of Islamic prophet Muhammad.
Lyon Cohen
Lyon Cohen( 1868–1937) was a Polish- born Canadian businessman and a philanthropist.
He was the grandfather of singer/ poet Leonard Cohen.

Question: Who is Theodora Porphyrogenita (11Th Century)'s paternal grandfather?
Answer: Romanos II