question: Who is the paternal grandfather of Isabella Of Ibelin (Died 1315)?
context: [["Tahira Wasti", ["Tahira Wasti( 1944 \u2013 March 11, 2012) was a well- known Pakistani writer and television actress.", "She is best known for portrayal of Isabella of Castile in the TV drama\" Shaheen\"."]], ["Helvis of Ibelin", ["Helvis of Ibelin( after 1178 \u2013 before 1 June 1216) was a daughter of Balian of Ibelin and his wife, Maria Komnene, who was the dowager Queen of Jerusalem.", "Helvis was a member of the House of Ibelin.", "She was Lady of Sidon by her first and second marriage."]], ["John of Ibelin (died after 1250)", ["John of Ibelin(\" Jean d' Ibelin\", died after 1250) was a member of the House of Ibelin and a crusader to the Kingdom of Cyprus.", "He was the son of Baldwin of Ibelin, seneschal of Cyprus, and of Alice de Bethsan.", "He married Isabelle du Rivet, daughter of Aimery du Rivet and Echive de Saint- Omer.", "They had:"]], ["John of Ibelin (jurist)", ["John of Ibelin( 1215 \u2013 December 1266), count of Jaffa and Ascalon, was a noted jurist and the author of the longest legal treatise from the Kingdom of Jerusalem.", "He was the son of Philip of Ibelin, bailli of the Kingdom of Cyprus, and Alice of Montb\u00e9liard, and was the nephew of John of Ibelin, the\" Old Lord of Beirut\".", "To distinguish him from his uncle and other members of the Ibelin family named John, he is sometimes called John of Jaffa."]], ["Guy of Ibelin (1286\u20131308)", ["Guy of Ibelin( 1286\u20131308), Lord of Nicosia, was the son of Balian of Ibelin, seneschal of the kingdom of Cyprus, and of Alice of Lampron.", "In 1303, with papal dispensation, he married his cousin Isabella of Ibelin, daughter of Baldwin of Ibelin and of Marguerite de Giblet.", "Their only child was Alix of Ibelin, second wife of Hugh IV of Cyprus.", "Guy was buried on September 8, 1308 in the Premonstratensian Abbey of Bellapais near Kyrenia, Cyprus."]], ["Philip of Ibelin (died 1318)", ["Philip of Ibelin( born c. 1255; died 25 November 1318, Nicosia) was Seneschal of the Kingdom of Cyprus.", "As one of the sons of Philippa Barlais and her husband Guy of Ibelin, he was a member of the house of Ibelin.", "He married to: 1. c. 1280 Maria, daughter of Vahran of Hamousse by Mary of Ibelin, without issue; 2. c. 1295", "Maria Embriaco of Gibelletto( d. 1331)"]], ["Isabella of France, Dauphine of Viennois", ["\" For other persons named Isabella of France, see Isabella of France( disambiguation)\" Isabella of France and Burgundy( 1310 \u2013 April 1348) was the daughter of Philip V of France and Joan II, Countess of Burgundy."]], ["Guy, Constable of Cyprus", ["Guy of Poitiers- Lusignan( 1275/80- 1303) was constable of Cyprus from 1298.", "He was the youngest son of Hugh III of Cyprus( 1267- 1284) and Isabella of Ibelin.", "He married Eschiva of Ibelin, Lady of Beirut.", "Their children were:"]], ["Baldwin of Ibelin (died 1313)", ["Baldwin of Ibelin (died 1313) was the ruling Lord of Korakou and of Vitzada, son of John of Ibelin (died after 1250) and Isabelle du Rivet.", "He married Marguerite de Giblet and they had :"]], ["Isabella of Ibelin (died 1315)", ["Isabella of Ibelin (died 1315) was the daughter of Baldwin of Ibelin (d. 1313), lord of Korakou, and of Marguerite de Giblet."]]]
supporting_facts: [["Isabella of Ibelin (died 1315)", 0], ["Baldwin of Ibelin (died 1313)", 0]]
evidences: [["Isabella of Ibelin", "father", "Baldwin of Ibelin"], ["Baldwin of Ibelin", "father", "John of Ibelin"]]
answer: John of Ibelin