Paternal Family Tree: Sancho III King Castile
Maternal Family Tree: Sancho III King Castile
In November 1128 [his father] Alfonso VII King Castile VII King Leon [aged 23] and [his mother] Berenguela Barcelona Queen Consort Castile and Leon [aged 12] were married. She by marriage Queen Consort Castile, Queen Consort Leon. She the daughter of [his grandfather] Raymond III Count Barcelona [aged 45] and [his grandmother] Douce Gevaudan Countess Barcelona. He the son of Raymond Ivrea and Urracca "Reckless" Jiménez Queen Consort Aragon and Pamplona. They were third cousin once removed.
In 1134 Sancho III King Castile was born to Alfonso VII King Castile VII King Leon [aged 28] and Berenguela Barcelona Queen Consort Castile and Leon [aged 18].
On 15th January 1149 [his mother] Berenguela Barcelona Queen Consort Castile and Leon [aged 33] died.
In 1151 Sancho III King Castile [aged 17] and Blanche Ramirez Queen Consort Castile [aged 17] were married. She by marriage Queen Consort Castile. She the daughter of García "Restorer" IV King Navarre and Marguerite Aigle Queen Consort Navarre. He the son of Alfonso VII King Castile VII King Leon [aged 45] and Berenguela Barcelona Queen Consort Castile and Leon. They were fourth cousins.
In 1152 [his father] Alfonso VII King Castile VII King Leon [aged 46] and Richeza Unknown Queen Consort Castile Queen Consort Leon were married. She by marriage Queen Consort Castile, Queen Consort Leon. He the son of [his grandfather] Raymond Ivrea and [his grandmother] Urracca "Reckless" Jiménez Queen Consort Aragon and Pamplona.
On 20th July 1153 [his brother-in-law] Sancho "Wise" King Navarre [aged 21] and [his sister] Sancha Ivrea [aged 14] were married. She the daughter of [his father] Alfonso VII King Castile VII King Leon [aged 48] and [his mother] Berenguela Barcelona Queen Consort Castile and Leon. He the son of García "Restorer" IV King Navarre and Marguerite Aigle Queen Consort Navarre. They were fourth cousins.
In 1154 [his brother-in-law] Louis VII King of the Franks [aged 34] and [his sister] Constance of Castile Queen of the Franks [aged 14] were married in Orléans. She by marriage Queen of the Franks. Somewhat curiously they were more closely related than Louis and his first wife Eleanor of Aquitaine [aged 32] whose marriage had been annulled on account of consanguinity. The difference in their ages was 20 years. She the daughter of [his father] Alfonso VII King Castile VII King Leon [aged 48] and [his mother] Berenguela Barcelona Queen Consort Castile and Leon. He the son of Louis VI King of the Franks and Adelaide Savoy Queen Consort France. They were second cousins.
On 11th November 1155 [his son] Alfonso VIII King Castile was born to Sancho III King Castile [aged 21] and [his wife] Blanche Ramirez Queen Consort Castile [aged 22]. He married before 17th September 1177 his half fourth cousin Eleanor Plantagenet Queen Consort Castile, daughter of King Henry "Curtmantle" II of England and Eleanor of Aquitaine Queen Consort Franks and England, and had issue.
In 1156 [his son] Garcia Ivrea was born to Sancho III King Castile [aged 22] and [his wife] Blanche Ramirez Queen Consort Castile [aged 22]. He died aged less than one years old.
In 1156 [his son] Garcia Ivrea died.
William of Worcester's Chronicle of England
William of Worcester, born around 1415, and died around 1482 was secretary to John Fastolf, the renowned soldier of the Hundred Years War, during which time he collected documents, letters, and wrote a record of events. Following their return to England in 1440 William was witness to major events. Twice in his chronicle he uses the first person: 1. when writing about the murder of Thomas, 7th Baron Scales, in 1460, he writes '… and I saw him lying naked in the cemetery near the porch of the church of St. Mary Overie in Southwark …' and 2. describing King Edward IV's entry into London in 1461 he writes '… proclaimed that all the people themselves were to recognize and acknowledge Edward as king. I was present and heard this, and immediately went down with them into the city'. William’s Chronicle is rich in detail. It is the source of much information about the Wars of the Roses, including the term 'Diabolical Marriage' to describe the marriage of Queen Elizabeth Woodville’s brother John’s marriage to Katherine, Dowager Duchess of Norfolk, he aged twenty, she sixty-five or more, and the story about a paper crown being placed in mockery on the severed head of Richard, 3rd Duke of York.
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On 12th August 1156 [his wife] Blanche Ramirez Queen Consort Castile [aged 23] died.
On 21st August 1157 [his father] Alfonso VII King Castile VII King Leon [aged 52] died. His succeeded son Sancho [aged 23] succeeded III King Castile. His succeeded son [his brother] Ferdinand [aged 20] succeeded II King Leon.
On 31st August 1158 Sancho III King Castile [aged 24] died. His succeeded son Alfonso [aged 2] succeeded VIII King Castile.
Kings France: Great x 4 Grand Son of Hugh I King of the Franks
Kings Duke Aquitaine: Great x 8 Grand Son of Ranulf I Duke Aquitaine
Kings Spain: Son of Alfonso VII King Castile VII King Leon
Great x 4 Grandfather: Adalbert King of Italy 
5 x Great Grand Son of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 3 Grandfather: Otto William Ivrea I Count Burgundy 6 x Great Grand Son of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 2 Grandfather: Reginald Ivrea I Count Burgundy 7 x Great Grand Son of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 4 Grandfather: Renaud Unknown
Great x 3 Grandmother: Ermentrude Countess Burgundy
Great x 1 Grandfather: William I Count Burgundy 8 x Great Grand Son of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 4 Grandfather: Richard "Fearless" Normandy I Duke Normandy 
Great x 3 Grandfather: Richard "Good" Normandy II Duke Normandy
Great x 4 Grandmother: Gunnora Countess Ponthieu
Great x 2 Grandmother: Alice Normandy Countess Burgundy 8 x Great Grand Daughter of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 4 Grandfather: Conan "Crooked" Penthièvre III Duke Brittany
Great x 3 Grandmother: Judith Penthièvre Duchess Normandy 7 x Great Grand Daughter of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 4 Grandmother: Ermengarde Gerberga Ingelger Duchess Brittany 6 x Great Grand Daughter of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
GrandFather: Raymond Ivrea 9 x Great Grand Son of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 1 Grandmother: Ettiennette Countess Burgundy
Father: Alfonso VII King Castile VII King Leon -2 x Great Grand Son of Alfonso VII King Castile VII King Leon
Great x 4 Grandfather: García Sánchez "Tremulous" II King Pamplona
Great x 3 Grandfather: Sancho "Great" III King Pamplona
Great x 4 Grandmother: Jimena Fernández Bermúdez Queen Consort Pamplona
Great x 2 Grandfather: Ferdinand "Great" I King Leon
Great x 4 Grandfather: Sancho García
Great x 3 Grandmother: Muniadona García Queen Consort Pamplona
Great x 1 Grandfather: Alfonso "Brave" VI King Leon VI King Castile
Great x 4 Grandfather: Bermudo "Gouty" II King Galicia II King Leon
Great x 3 Grandfather: Alfonso "Noble" V King Leon
Great x 4 Grandmother: Elviro Garcia Queen Galicia
Great x 2 Grandmother: Sancha Astur Leonese
Great x 4 Grandfather: Menendo González
Great x 3 Grandmother: Elvira González Queen Consort Leon
GrandMother: Urracca "Reckless" Jiménez Queen Consort Aragon and Pamplona 2 x Great Grand Daughter of Hugh I King of the Franks
Great x 4 Grandfather: Hugh I King of the Franks 
-2 x Great Grand Son of Hugh I King of the Franks
Great x 3 Grandfather: Robert "Pious" II King of the Franks Son of Hugh I King of the Franks
Great x 4 Grandmother: Adelaide Poitiers Queen Consort France 2 x Great Grand Daughter of Ranulf I Duke Aquitaine
Great x 2 Grandfather: Robert I Duke Burgundy Grand Son of Hugh I King of the Franks
Great x 4 Grandfather: William "Liberator" I Count Provence I Count Arles
Great x 3 Grandmother: Constance Arles Queen Consort France
Great x 4 Grandmother: Adelaide-Blanche of Anjou Queen Consort West Francia
Great x 1 Grandmother: Constance Burgundy Queen Consort Castile and Leon Great Grand Daughter of Hugh I King of the Franks
Great x 2 Grandmother: Helie Samur Duchess Burgundy
Sancho III King Castile Son of Alfonso VII King Castile VII King Leon
Great x 4 Grandfather: Ramon Borrell Count of Barcelona
Great x 3 Grandfather: Berenguer Ramon I Count of Barcelona
Great x 4 Grandmother: Ermesinde of Carcassonne
Great x 2 Grandfather: Ramon Berenguer "Old" Barcelona I Count Barcelona
Great x 1 Grandfather: Ramon Berenguer "Towhead" Barcelona II Count Barcelona
GrandFather: Raymond III Count Barcelona
Mother: Berenguela Barcelona Queen Consort Castile and Leon 11 x Great Grand Daughter of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 1 Grandfather: Gilbert Gevaudan
GrandMother: Douce Gevaudan Countess Barcelona 10 x Great Grand Daughter of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 4 Grandfather: William "Liberator" I Count Provence I Count Arles
Great x 3 Grandfather: William "Pious" Arles 2nd Count Provence
Great x 4 Grandmother: Arsenda Comminges Countess Provence and Arles
Great x 2 Grandfather: Geoffrey Arles 1st Count Arles 1st Count Provence 8 x Great Grand Son of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 4 Grandfather: Otto William Ivrea I Count Burgundy 6 x Great Grand Son of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 3 Grandmother: Gerbergam Ivrea Countess Provence 7 x Great Grand Daughter of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 4 Grandmother: Ermentrude Countess Burgundy
Great x 1 Grandmother: Gerberga Arles 9 x Great Grand Daughter of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 2 Grandmother: Etienette Countess Provence and Arles