Manco Inca Yupanqui
Manco Inca Yupanqui (1515 – c. 1544) (Manqu Inka Yupanki in Quechua) was the founder and monarch (Sapa Inca) of the independent Neo-Inca State in Vilcabamba, although he was originally a puppet Inca Emperor installed by the Spaniards.
He was also known as "Manco II" and "Manco Cápac IIManqu Qhapaq II").
He was one of the sons of Huayna Capac and a younger brother of Huascar.
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 Bryant (naturalist)
Henry Bryant( May 12, 1820 – February 2, 1867) was an American physician and naturalist.
He was the grandfather of Henry Bryant Bigelow.
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.
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.
Guillaume Wittouck
Guillaume Wittouck( 1749- 1829) was a Belgian lawyer and High Magistrate.
He was the Grandfather of industrialist Paul Wittouck.
Titu Cusi
"Don" Diego de Castro Titu Cusi Yupanqui (1529 – 1571) was an Inca ruler of Vilcabamba and the penultimate leader of the Neo-Inca State.
He was a son of Manco Inca Yupanqui
, He was crowned in 1563, after the death of his half brother, Sayri Tupac.
He ruled until his death in 1571, probably of pneumonia.
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.
John Westley
Rev. John Westley( 1636 – 78) was an English nonconformist minister.
He was the grandfather of John Wesley( founder of Methodism).

Question: Who is Titu Cusi's paternal grandfather?
Answer: Huayna Capac