John Montgomery I Count Alençon was born to William "Talvas" Montgomery III Count Ponthieu 1093-1172 and Helie Burgundy Countess Ponthieu 1080-1141.
Around 1115 [his father] William "Talvas" Montgomery III Count Ponthieu 1093-1172 (age 22) and [his mother] Helie Burgundy Countess Ponthieu 1080-1141 (age 35) were married. She by marriage Countess Ponthieu. She the daughter of Odo "Red" I Duke Burgundy 1058-1103 and Sybilla Ivrea Duchess Burgundy 1065-1103. He the son of Robert II Belleme 2nd Count Ponthieu 3rd Earl of Shrewsbury (age 59) and Agnes Ponthieu Countess Ponthieu and Shrewsbury. They were fourth cousins.
After 1130 [his grandfather] Robert II Belleme 2nd Count Ponthieu 3rd Earl of Shrewsbury (age 74) died. His son [his father] William "Talvas" Montgomery III Count Ponthieu 1093-1172 (age 37) succeeded III Count Ponthieu.
On 28 Feb 1141 [his mother] Helie Burgundy Countess Ponthieu 1080-1141 (age 61) died.
Around 1149 John Montgomery I Count Alençon was created I Count Alençon.
In 1172 [his father] William "Talvas" Montgomery III Count Ponthieu 1093-1172 (age 79) died.
Before 1185 John Montgomery I Count Alençon and Beatrix of Maine were married. He the son of William "Talvas" Montgomery III Count Ponthieu 1093-1172 and Helie Burgundy Countess Ponthieu 1080-1141. She a great granddaughter of King Henry I "Beauclerc" England.
On 24 Feb 1191 John Montgomery I Count Alençon died at his Château d'Alençon. His son [his son] John Montgomery II Count Alençon -1191 succeeded II Count Alençon albeit he survived only three months.
[his son] John Montgomery II Count Alençon -1191 was born to John Montgomery I Count Alençon and Beatrix of Maine. He a great x 2 grandson of King Henry I "Beauclerc" England.
Paternal Family Tree: Montgomery
Maternal Family Tree: Ettiennette Countess Burgundy
Kings Franks: Great x 11 Grand Son of Charles "Charlemagne aka Great" King Franks King Lombardy Holy Roman Emperor
Kings France: Great x 3 Grand Son of Robert "Pious" II King France
Great x 2 Grandfather: Roger Montgomery
Great x 1 Grandfather: Roger "The Great" Montgomery 1st Earl of Shrewsbury
GrandFather: Robert II Belleme 2nd Count Ponthieu 3rd Earl of Shrewsbury
Great x 4 Grandfather: Yves Belleme
Great x 3 Grandfather: William "Princeps" Belleme
Great x 4 Grandmother: Godeheut Unknown
Great x 2 Grandfather: William "Talvas" Belleme
Great x 4 Grandfather: Arnulf de Ganelon
Great x 3 Grandmother: Mathilde Condé Sur Noireau
Great x 1 Grandmother: Mabel Belleme
Great x 2 Grandmother: Hilderburg Unknown
Father: William "Talvas" Montgomery III Count Ponthieu 1093-1172
Great x 3 Grandfather: Hugh Ponthieu I Count Ponthieu -1000
Great x 2 Grandfather: Enguerrand Ponthieu I Count Ponthieu
Great x 4 Grandfather: Hugh I King France
Great x 3 Grandmother: Gisela Capet Countess Ponthieu 968-1002
Great x 4 Grandmother: Adelaide Poitiers Queen Consort France 945-1004
Great x 1 Grandfather: Bishop Guy Ponthieu 1027-1100
GrandMother: Agnes Ponthieu Countess Ponthieu and Shrewsbury
John Montgomery I Count Alençon -1191
Great x 4 Grandfather: Hugh I King France
Great x 3 Grandfather: Robert "Pious" II King France
Great x 4 Grandmother: Adelaide Poitiers Queen Consort France 945-1004
Great x 2 Grandfather: Robert I Duke Burgundy
Great x 4 Grandfather: William "Liberator" Arles 1st Count Provence 1st Count Arles
Great x 3 Grandmother: Constance Arles Queen Consort France 986-1034
Great x 4 Grandmother: Adelaide Blanche Ingelger Queen Consort West Francia 940-1026
Great x 1 Grandfather: Henry "Gallant" Burgundy
GrandFather: Odo "Red" I Duke Burgundy 1058-1103
Mother: Helie Burgundy Countess Ponthieu 1080-1141
Great x 4 Grandfather: Adalbert King of Italy
Great x 3 Grandfather: Otto William Ivrea I Count Burgundy 960-1026
Great x 2 Grandfather: Reginald Ivrea I Count Burgundy 986-1057
Great x 1 Grandfather: William Ivrea I Count Burgundy 1020-1087
Great x 4 Grandfather: Richard "Fearless" Normandy I Duke Normandy 932-996
Great x 3 Grandfather: Richard "Good" Normandy II Duke Normandy
Great x 2 Grandmother: Alice Normandy Countess Burgundy 1002-1038
Great x 4 Grandfather: Conan "Crooked" Penthièvre III Duke Brittany -992
Great x 3 Grandmother: Judith Penthièvre Duchess Normandy 982-1017
Great x 4 Grandmother: Ermengarde Gerberga Ingelger Duchess Brittany 956-1024
GrandMother: Sybilla Ivrea Duchess Burgundy 1065-1103