Question: Who is the paternal grandfather of George I Ghisi?

Knowledge 1: George I Ghisi
George I Ghisi  (died 15 March 1311) was a Latin feudal lord in medieval Greece.A son of Bartholomew I Ghisi, through his first marriage to a daughter of Guy II of Dramelayhe was Baron of Chalandritsa in the Principality of Achaea.In 1292, he was also named as castellan of Kalamata.In that year, following a series of destructive raids in the Greek and Latin-held islands of the Aegean Sea, the Aragonese admiral Roger of Lauria led his fleet to anchor at Navarino.Fearful lest the Aragonese seize possession of lands in Achaea, or repeat their plundering raids, andwith Prince Florent of Hainaut absent in Italy, George assembled two hundred knights at Androusa and attacked the Aragonese.In a brief but bloody combat, the Achaeans were defeated and George captured, only to be ransomed for 8,000 "hyperpyra" shortly after when the Aragonese fleet sailed to Glarentsa.In 1303, when his father died, he inherited the lordship of the Aegean islands of Tinos, Mykonos, with fiefs on Serifos and Keos.Through his second wife, Alice dalle Carceri, he also became triarch of Negroponte (Euboea).He was killed in the Battle of the Cephissus against the Catalan Company in 1311.According to A. Bon, his wife Alice died in 1313. [SEP] Knowledge 2: Bartholomew I Ghisi
Bartholomew I Ghisi (died 1303) was the Venetian hereditary lord of the islands of Tenos and Mykonos in the Cyclades in Frankish Greece.He was the son of the conqueror of these islands, Andrea Ghisi, and lived to a very advanced age (he is recorded as "very old" in 1290).He was succeeded by his son, George I Ghisi.
Knowledge 1: George I Ghisi
George I Ghisi  (died 15 March 1311) was a Latin feudal lord in medieval Greece.A son of Bartholomew I Ghisi, through his first marriage to a daughter of Guy II of Dramelayhe was Baron of Chalandritsa in the Principality of Achaea.In 1292, he was also named as castellan of Kalamata.In that year, following a series of destructive raids in the Greek and Latin-held islands of the Aegean Sea, the Aragonese admiral Roger of Lauria led his fleet to anchor at Navarino.Fearful lest the Aragonese seize possession of lands in Achaea, or repeat their plundering raids, andwith Prince Florent of Hainaut absent in Italy, George assembled two hundred knights at Androusa and attacked the Aragonese.In a brief but bloody combat, the Achaeans were defeated and George captured, only to be ransomed for 8,000 "hyperpyra" shortly after when the Aragonese fleet sailed to Glarentsa.In 1303, when his father died, he inherited the lordship of the Aegean islands of Tinos, Mykonos, with fiefs on Serifos and Keos.Through his second wife, Alice dalle Carceri, he also became triarch of Negroponte (Euboea).He was killed in the Battle of the Cephissus against the Catalan Company in 1311.According to A. Bon, his wife Alice died in 1313. [SEP] Knowledge 2: 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.
Knowledge 1: George I Ghisi
George I Ghisi  (died 15 March 1311) was a Latin feudal lord in medieval Greece.A son of Bartholomew I Ghisi, through his first marriage to a daughter of Guy II of Dramelayhe was Baron of Chalandritsa in the Principality of Achaea.In 1292, he was also named as castellan of Kalamata.In that year, following a series of destructive raids in the Greek and Latin-held islands of the Aegean Sea, the Aragonese admiral Roger of Lauria led his fleet to anchor at Navarino.Fearful lest the Aragonese seize possession of lands in Achaea, or repeat their plundering raids, andwith Prince Florent of Hainaut absent in Italy, George assembled two hundred knights at Androusa and attacked the Aragonese.In a brief but bloody combat, the Achaeans were defeated and George captured, only to be ransomed for 8,000 "hyperpyra" shortly after when the Aragonese fleet sailed to Glarentsa.In 1303, when his father died, he inherited the lordship of the Aegean islands of Tinos, Mykonos, with fiefs on Serifos and Keos.Through his second wife, Alice dalle Carceri, he also became triarch of Negroponte (Euboea).He was killed in the Battle of the Cephissus against the Catalan Company in 1311.According to A. Bon, his wife Alice died in 1313. [SEP] Knowledge 2: 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.

Answer: Andrea Ghisi