Question: Who is Rostislav I Of Kiev's paternal grandfather?

Knowledge 1: Rostislav I of Kiev
Rostislav Mstislavich (Russian and Ukrainian:Ростисла́в Мстисла́вич) (c. 1110–1167), Kniaz' (Prince) of Smolensk (1125–1160), Novgorod (1154) and Velikiy Kniaz (Grand Prince) of Kiev (1154, 1159–1167).He was the son of Mstislav I of Kiev and Christina Ingesdotter of Sweden.After Yaroslav II of Kiev was driven out of Novgorod, Rostislav was invited to become the ruler of Novgorod.He accepted, and became the prince on April 17, 1154.Then, learning that Iziaslav II had died, Rostislav left Novgorod to take the Kievan throne.Indignant that their prince had abandoned them and angered that he did not make order among them, but tore them more apart, the citizens of Novgorod drove out Rostislav's son, David, who was their governor.They replaced him with Mstislav Yurievich, the son of Yury Dolgoruky.Rostislav ruled Kiev for one week before Iziaslav III of Kiev forced him to flee to Chernigov.He left four sons, princes David Rostislavich of Novgorod, Mstislav Rostislavich of Smolensk,Roman I of Kiev and Rurik Rostislavich and two daughters Elena Rostislavna of Kiev-Smolensk (died 1204) and Agrafena Rostislavna (died 1237). [SEP] Knowledge 2: Mstislav I of Kiev
Mstislav I Vladimirovich the Great (Russian:Мстислав Владимирович Великий,(June 1, 1076 – April 14, 1132) was the Grand Prince of Kiev (1125–1132), the eldest son of Vladimir II Monomakh by Gytha of Wessex.He is figured prominently in the Norse Sagas under the name Harald, to allude to his grandfather, Harold II of England.Mstislav's Christian name was Theodore.
Knowledge 1: Rostislav I of Kiev
Rostislav Mstislavich (Russian and Ukrainian:Ростисла́в Мстисла́вич) (c. 1110–1167), Kniaz' (Prince) of Smolensk (1125–1160), Novgorod (1154) and Velikiy Kniaz (Grand Prince) of Kiev (1154, 1159–1167).He was the son of Mstislav I of Kiev and Christina Ingesdotter of Sweden.After Yaroslav II of Kiev was driven out of Novgorod, Rostislav was invited to become the ruler of Novgorod.He accepted, and became the prince on April 17, 1154.Then, learning that Iziaslav II had died, Rostislav left Novgorod to take the Kievan throne.Indignant that their prince had abandoned them and angered that he did not make order among them, but tore them more apart, the citizens of Novgorod drove out Rostislav's son, David, who was their governor.They replaced him with Mstislav Yurievich, the son of Yury Dolgoruky.Rostislav ruled Kiev for one week before Iziaslav III of Kiev forced him to flee to Chernigov.He left four sons, princes David Rostislavich of Novgorod, Mstislav Rostislavich of Smolensk,Roman I of Kiev and Rurik Rostislavich and two daughters Elena Rostislavna of Kiev-Smolensk (died 1204) and Agrafena Rostislavna (died 1237). [SEP] Knowledge 2: Rurik Rostislavich
Rurik Rostislavich( Russian and Ukrainian: Рюрик Ростиславич)( ?– 1215), Prince of Novgorod( 1170 – 1171), Belgorod Kievsky, presently Bilohorodka( 1173–1194), Grand Prince of Kiev( 1173, 1180–1182, 1194–1202, 1203–1205, 1206, 1207–1210), Prince of Chernigov( 1210–1214).Rurik was the son of Rostislav I of Kiev, and succession conflicts placed Rurik on the throne of the Kievan Rus' no less than seven times.In 1182, he became co-ruler with Sviatoslav III of Kiev, an arrangement that lasted until Sviatoslav's death in 1194.Rurik ruled alone until 1199, when his rule was challenged by Roman the Great, who deposed Rurik.After a brief stint in Chernihiv, where he built the Church of St. Paraskebas, Rurik, along with his kinsmen and a Cuman army, attacked and sacked Kiev in 1203, but was repelled until Roman's death in 1205.Rurik had been confined to a monastery in 1204, but he abandoned his holy vows and returned to the throne.His cousin, Vsevolod, felt that Rurik's previous monastic vows rendered his authority invalid, and so attacked and briefly seized Kiev in 1206, 1207, and 1211.He succeeded in capturing Rurik, who died in captivity in Chernigov.Rurik was married to Anna of Turov; among their children was Rostislav II of Kiev.
Knowledge 1: Mstislav I of Kiev
Mstislav I Vladimirovich the Great (Russian:Мстислав Владимирович Великий,(June 1, 1076 – April 14, 1132) was the Grand Prince of Kiev (1125–1132), the eldest son of Vladimir II Monomakh by Gytha of Wessex.He is figured prominently in the Norse Sagas under the name Harald, to allude to his grandfather, Harold II of England.Mstislav's Christian name was Theodore. [SEP] Knowledge 2: Rurik Rostislavich
Rurik Rostislavich( Russian and Ukrainian: Рюрик Ростиславич)( ?– 1215), Prince of Novgorod( 1170 – 1171), Belgorod Kievsky, presently Bilohorodka( 1173–1194), Grand Prince of Kiev( 1173, 1180–1182, 1194–1202, 1203–1205, 1206, 1207–1210), Prince of Chernigov( 1210–1214).Rurik was the son of Rostislav I of Kiev, and succession conflicts placed Rurik on the throne of the Kievan Rus' no less than seven times.In 1182, he became co-ruler with Sviatoslav III of Kiev, an arrangement that lasted until Sviatoslav's death in 1194.Rurik ruled alone until 1199, when his rule was challenged by Roman the Great, who deposed Rurik.After a brief stint in Chernihiv, where he built the Church of St. Paraskebas, Rurik, along with his kinsmen and a Cuman army, attacked and sacked Kiev in 1203, but was repelled until Roman's death in 1205.Rurik had been confined to a monastery in 1204, but he abandoned his holy vows and returned to the throne.His cousin, Vsevolod, felt that Rurik's previous monastic vows rendered his authority invalid, and so attacked and briefly seized Kiev in 1206, 1207, and 1211.He succeeded in capturing Rurik, who died in captivity in Chernigov.Rurik was married to Anna of Turov; among their children was Rostislav II of Kiev.

Answer: Vladimir II Monomakh