Question: When did Geoffrey Ii, Count Of Perche's father die?

Knowledge 1: Geoffrey II, Count of Perche
Geoffrey II (died October 1100), Count of Mortagne and Count of Perche, son of Rotrou I, Viscount of Châteaudun, and Adelise de Bellême, daughter of Guérin de Domfront.Geoffrey was Count of Mortagne and Seigneur of Nogent from 1060 to 1090, and Count of Perche from 1090 until his death.Godffrey succeeded his father in 1080, receiving the Percheron fields of his father (Mortagne-au-Perche and Nogent-le-Rotrou), while his younger brother Hugues received Châteaudun.A third brother, Rotrou, acquired by marriage the lordship of Montfort-le-Rotrou.He participated in the conquest of England and fought at the Battle of Hastings.For his service, William the Conqueror gave him a reward of significant property in England.Geoffrey and his two brothers attacked Robert of Bellême, involving a land dispute.Later he tried to attack Belleme again, with the help of Elias I, Count of Maine, but failed.He devoted the rest of his life to religious pursuits, and founded the first leper colony in Perche.Geoffrey married Beatrix de Ramerupt, daughter of Hilduin IV, Count of Montdidier, and Alice de Roucy.Geoffrey and Beatrix had:Geoffrey was succeeded by his son Rotrou as Count of Perche upon his death. [SEP] Knowledge 2: Rotrou I, Viscount of Châteaudun
Rotrou I (died 1080), Viscount of Châteaudun and Count of Perche (as Rotrou II), son of Geoffrey II, Viscount of Châteaudun, and Helvise de Corbon (d. 1 March 1080), daughter of Rainard, Lord of Pithiviers.He was noted in charters providing donations to the abbies of St. Vincent of Le Mans and St. Denis of Nogent-le-Rotrou.Rotrou attempted to avenge the murder of his father by attacking Thierry, Bishop of Chartres, an act for which he was briefly excommunicated.Rotrou fought William of Gouët, a follower of Stephen, Count of Blois, (and probably the father of William Gouët IV, husband of his granddaughter Isabelle of Champagne) for the strongholds of Perche-Gouët.He also challenged Roger de Montgomerie and William the Conqueror, fighting in the insurrection of Robert Curthose against his father William.Rotrou married Adelise (Adeliza) de Bellême, daughter of Guérin de Domfront.Rotrou and Adelise had:Rotrou also had an illegitimate son named Robert “Manda Guerra” (d. after 1095).Rotrou was succeeded as Viscount of Châteaudun by his son Hugues and, as Count of Perche, by his son Geoffroy.
Knowledge 1: Geoffrey II, Count of Perche
Geoffrey II (died October 1100), Count of Mortagne and Count of Perche, son of Rotrou I, Viscount of Châteaudun, and Adelise de Bellême, daughter of Guérin de Domfront.Geoffrey was Count of Mortagne and Seigneur of Nogent from 1060 to 1090, and Count of Perche from 1090 until his death.Godffrey succeeded his father in 1080, receiving the Percheron fields of his father (Mortagne-au-Perche and Nogent-le-Rotrou), while his younger brother Hugues received Châteaudun.A third brother, Rotrou, acquired by marriage the lordship of Montfort-le-Rotrou.He participated in the conquest of England and fought at the Battle of Hastings.For his service, William the Conqueror gave him a reward of significant property in England.Geoffrey and his two brothers attacked Robert of Bellême, involving a land dispute.Later he tried to attack Belleme again, with the help of Elias I, Count of Maine, but failed.He devoted the rest of his life to religious pursuits, and founded the first leper colony in Perche.Geoffrey married Beatrix de Ramerupt, daughter of Hilduin IV, Count of Montdidier, and Alice de Roucy.Geoffrey and Beatrix had:Geoffrey was succeeded by his son Rotrou as Count of Perche upon his death. [SEP] Knowledge 2: Thomas, Count of Perche
Thomas (1195-20 May 1217), Count of Perche, son of Geoffrey III, Count of Perche, and Richenza-Matilda of Saxony, daughter of Henry the Lion, Duke of Saxony and Bavaria, and Matilda.Only seven when his father died, Thomas became Count of Perche under the regency of his mother and her new husband Enguerrand III, Lord of Coucy.In 1216, the English barons rebelled in the First Barons' War against John Lackland, and offered the English crown to Louis VIII the Lion, King of France.The death of King John ended this arrangement and the crown went to Henry III, John's son.In the end, Louis VIII renounced the English crown, but in the interim fought the forces of William Marshal, 1st Earl of Pembroke.In the decisive Battle of Lincoln (1217), Thomas, the commander of the French forces, was killed.Thomas married Hélisende Rethel, daughter of Hugh II, Count of Rethel, and Felicitas, daughter of Simon of Broyes.This union produced no children.His widow remarried Garnier de Traînel, Seigneur de Marigny.Following Thomas' death in 1217, King Philip II of France would gain control of the castles of Moulins-la-Marche, Bonsmoulin, and Belleme, which had been contested since 1182.Thomas’ uncle William, who was also Bishop of Chalons, succeeded him as the Count of Perche.
Knowledge 1: Rotrou I, Viscount of Châteaudun
Rotrou I (died 1080), Viscount of Châteaudun and Count of Perche (as Rotrou II), son of Geoffrey II, Viscount of Châteaudun, and Helvise de Corbon (d. 1 March 1080), daughter of Rainard, Lord of Pithiviers.He was noted in charters providing donations to the abbies of St. Vincent of Le Mans and St. Denis of Nogent-le-Rotrou.Rotrou attempted to avenge the murder of his father by attacking Thierry, Bishop of Chartres, an act for which he was briefly excommunicated.Rotrou fought William of Gouët, a follower of Stephen, Count of Blois, (and probably the father of William Gouët IV, husband of his granddaughter Isabelle of Champagne) for the strongholds of Perche-Gouët.He also challenged Roger de Montgomerie and William the Conqueror, fighting in the insurrection of Robert Curthose against his father William.Rotrou married Adelise (Adeliza) de Bellême, daughter of Guérin de Domfront.Rotrou and Adelise had:Rotrou also had an illegitimate son named Robert “Manda Guerra” (d. after 1095).Rotrou was succeeded as Viscount of Châteaudun by his son Hugues and, as Count of Perche, by his son Geoffroy. [SEP] Knowledge 2: Thomas, Count of Perche
Thomas (1195-20 May 1217), Count of Perche, son of Geoffrey III, Count of Perche, and Richenza-Matilda of Saxony, daughter of Henry the Lion, Duke of Saxony and Bavaria, and Matilda.Only seven when his father died, Thomas became Count of Perche under the regency of his mother and her new husband Enguerrand III, Lord of Coucy.In 1216, the English barons rebelled in the First Barons' War against John Lackland, and offered the English crown to Louis VIII the Lion, King of France.The death of King John ended this arrangement and the crown went to Henry III, John's son.In the end, Louis VIII renounced the English crown, but in the interim fought the forces of William Marshal, 1st Earl of Pembroke.In the decisive Battle of Lincoln (1217), Thomas, the commander of the French forces, was killed.Thomas married Hélisende Rethel, daughter of Hugh II, Count of Rethel, and Felicitas, daughter of Simon of Broyes.This union produced no children.His widow remarried Garnier de Traînel, Seigneur de Marigny.Following Thomas' death in 1217, King Philip II of France would gain control of the castles of Moulins-la-Marche, Bonsmoulin, and Belleme, which had been contested since 1182.Thomas’ uncle William, who was also Bishop of Chalons, succeeded him as the Count of Perche.

Answer: 1 March 1080