Paternal Family Tree: Obertenghi aka Welf
Maternal Family Tree: Wulfhilde of Saxony Duchess Bavaria 1072-1126
Around 1095 [her father] Henry "Black" Welf IX Duke Bavaria [aged 20] and [her mother] Wulfhilde of Saxony Duchess Bavaria [aged 23] were married. She the daughter of [her grandfather] Magnus Billung Duke Saxony [aged 50]. He the son of Welf I Duke Bavaria [aged 58] and Judith Flanders Duchess Bavaria. They were fourth cousins.
On 19th May 1100 Judith Welf Holy Roman Empress was born to Henry "Black" Welf IX Duke Bavaria [aged 25] and Wulfhilde of Saxony Duchess Bavaria [aged 28].
On 24th December 1120 [her uncle] Welf "Fat" Welf V Duke Bavaria [aged 48] died. His brother Henry [aged 45] succeeded IX Duke Bavaria. [her mother] Wulfhilde of Saxony Duchess Bavaria [aged 48] by marriage Duchess Bavaria.
In 1122 Frederick "Barbarossa" Hohenstaufen I Holy Roman Emperor was born to Frederick "One Eyed" Hohenstaufen I Holy Roman Emperor [aged 32] and Judith Welf Holy Roman Empress [aged 21]. He married 9th June 1156 his fourth cousin Beatrice of Burgundy Holy Roman Empress, daughter of Reginald Ivrea III Count Burgundy, and had issue.
In 1123 [her daughter] Bertha aka Judith Hohenstaufen Duchess Lorraine was born to Frederick "One Eyed" Hohenstaufen I Holy Roman Emperor [aged 33] and Judith Welf Holy Roman Empress [aged 22]. She married her half third cousin once removed Matthias Metz I Duke Lorraine, son of Simon Metz I Duke Lorraine and Adelaide Reginar Duchess Lorraine, and had issue.
On 17th March 1126 [her brother] Conrad Welf [aged 21] died. His brother Henry [aged 18] succeeded X Duke Bavaria.
On 13th December 1126 [her father] Henry "Black" Welf IX Duke Bavaria [aged 51] died. His son Henry [aged 18] succeeded 10th Duke Bavaria.
On 26th December 1126 [her mother] Wulfhilde of Saxony Duchess Bavaria [aged 54] died.
In 1127 [her brother] Henry "Proud" Welf X Duke Bavaria [aged 19] and [her sister-in-law] Gertrude Süpplingenburg Duchess Bavaria were married. She by marriage Duchess Bavaria. He the son of [her father] Henry "Black" Welf IX Duke Bavaria and [her mother] Wulfhilde of Saxony Duchess Bavaria.
On 27th August 1130 Judith Welf Holy Roman Empress [aged 30] died.
Frederick "One Eyed" Hohenstaufen I Holy Roman Emperor and Judith Welf Holy Roman Empress were married. She by marriage Holy Roman Empress. She the daughter of Henry "Black" Welf IX Duke Bavaria and Wulfhilde of Saxony Duchess Bavaria.
Kings Wessex: Great x 6 Grand Daughter of King Alfred "The Great" of Wessex
Kings France: Great x 9 Grand Daughter of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Agnes de la Marck Queen Consort Navarre [5]
Isabella Burgundy Queen Consort Germany [1]
Frederick "Barbarossa" Hohenstaufen I Holy Roman Emperor [1]
Margaret of France Queen Consort England [1]
Philip "Noble" III King Navarre [1]
Joan Capet II Queen Navarre [1]
King John "The Good" II of France [1]
Blanche Bourbon Queen Consort Castile [1]
Martha Armagnac Queen Consort Aragon [1]
Yolande of Bar Queen Consort Aragon [2]
Charles "Beloved Mad" VI King France [1]
Margaret of Anjou Queen Consort England [1]
Mary of Guelders Queen Consort Scotland [5]
King Richard III of England [1]
Anne Neville Queen Consort England [1]
Christina Queen Consort Denmark Norway and Sweden [1]
Bianca Maria Sforza Holy Roman Empress [5]
Philip "Handsome Fair" King Castile [10]
Germaine Foix Queen Consort Aragon [6]
Marguerite Valois Orléans Queen Consort Navarre [12]
Queen Anne Boleyn of England [1]
Anne of Cleves Queen Consort England [10]
Mary of Guise Queen Consort Scotland [21]
Antoine King Navarre [13]
Madeleine Valois [2]
Queen Catherine Howard of England [1]
Maximilian Habsburg Spain II Holy Roman Emperor [4]
Jane Grey I Queen England and Ireland [1]
Francis II King France King Consort Scotland [1]
Elizabeth Valois Queen Consort Spain [1]
Louise Lorraine Queen Consort France [13]
Maximilian "The Great" Wittelsbach I Duke Bavaria I Elector Bavaria [27]
Maria Anna Wittelsbach Holy Roman Empress [27]
Electress Louise Juliana of the Palatine Rhine [5]
Ferdinand of Spain II Holy Roman Emperor [15]
George Wharton [13]
Margaret of Austria Queen Consort Spain [15]
Anna of Austria Holy Roman Empress [15]
Elisabeth Bourbon Queen Consort Spain [4]
Henrietta Maria Bourbon Queen Consort England [4]
John George Wettin Elector Saxony [14]
Frederick William "Great Elector" Hohenzollern Elector Brandenburg [14]
Eleonora Gonzaga Queen Consort Bohemia [30]
Maria Leopoldine Habsburg Spain Queen Consort Bohemia [15]
Hedwig Eleonora Queen Consort Sweden [14]
Marie Françoise Élisabeth of Savoy Queen Consort of Portugal [32]
Charlotte Amalie Hesse-Kassel Queen Consort Denmark and Norway [14]
Victor Amadeus King Sardinia [44]
Louise of Mecklenburg Güstrow Queen Consort Denmark and Norway [14]
Maria Anna Neuburg Queen Consort Spain [28]
Joseph I Holy Roman Emperor [28]
Charles Habsburg Spain VI Holy Roman Emperor [28]
Francis I Holy Roman Emperor [17]
Adolph Frederick King Sweden [14]
Elisabeth Therese Lorraine Queen Consort Sardinia [17]
King George III of Great Britain and Ireland [30]
Charlotte Mecklenburg Strelitz Queen Consort England [16]
Caroline Matilda Hanover Queen Consort Denmark and Norway [30]
Marie Sophie Hesse-Kassel Queen Consort Denmark and Norway [42]
Caroline of Brunswick Queen Consort England [30]
Frederick William III King Prussia [14]
Frederica Mecklenburg Strelitz Queen Consort Hanover [30]
Queen Fredrika Dorotea Vilhelmina [28]
King Christian I of Norway and VIII of Denmark [46]
Frederick William IV King Prussia [30]
Caroline Amalie Oldenburg Queen Norway [2]
Frederick VII King of Denmark [76]
Queen Louise Hesse-Kassel of Denmark [88]
King Christian IX of Denmark [45]
Queen Victoria of the United Kingdom [60]
Queen Sophia of Sweden and Norway [73]
Victoria Empress Germany Queen Consort Prussia [166]
King Edward VII of the United Kingdom [166]
Maria Christina of Austria Queen Consort Spain [42]
Brigadier-General Charles Fitz-Clarence [48]
Victoria Mary Teck Queen Consort England [84]
Frederick Charles I King Finland [88]
Constantine I King Greece [45]
Alexandrine Mecklenburg-Schwerin Queen Consort Denmark [121]
Victoria Eugénie Mountbatten Queen Consort Spain [208]
Louise Mountbatten Queen Consort Sweden [250]
Ingrid Bernadotte Queen Consort Denmark [196]
Philip Mountbatten Duke Edinburgh [295]
Queen Elizabeth II of the United Kingdom [193]
Sophia Glücksburg Queen Consort Spain [2]
Constantine II King Hellenes [2]
Carl XVI King Sweden [409]
Queen Consort Camilla Shand [80]
Great x 2 Grandfather: Albert Azzo I Margrave of Milan
Great x 1 Grandfather: Albert Azzo II Margrave of Milan
Grandfather: Welf I Duke Bavaria
Great x 1 Grandmother: Kunigunde
Father: Henry "Black" Welf IX Duke Bavaria 5 x Great Grandson of King Alfred "The Great" of Wessex
Great x 4 Grandfather: Arnulf "Great" I Count Flanders Grandson of King Alfred "The Great" of Wessex
Great x 3 Grandfather: Baldwin III Count Flanders Great Grandson of King Alfred "The Great" of Wessex
Great x 4 Grandmother: Adela Vermandois Countess Flanders 4 x Great Granddaughter of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 2 Grandfather: Arnulf II Count Flanders 2 x Great Grandson of King Alfred "The Great" of Wessex
Great x 4 Grandfather: Hermmann Billung Margrave Billung March
Great x 3 Grandmother: Matilda Billung Countess Flanders
Great x 4 Grandmother: Hildegard Westerburg Margrave Billung March
Great x 1 Grandfather: Baldwin "Bearded" IV Count Flanders 3 x Great Grandson of King Alfred "The Great" of Wessex
Great x 4 Grandfather: Adalbert I Margrave of Ivrea 
Great x 3 Grandfather: Berengar II King of Italy
Great x 2 Grandmother: Rozala of Italy 5 x Great Granddaughter of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 4 Grandfather: Boso Margrave Tuscany 3 x Great Grandson of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 3 Grandmother: Willa Bosonids Queen Consort Italy 4 x Great Granddaughter of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Grandmother: Judith Flanders Duchess Bavaria 4 x Great Granddaughter of King Alfred "The Great" of Wessex
Great x 4 Grandfather: William "Longsword" I Duke Normandy 
Great x 3 Grandfather: Richard "Fearless" I Duke Normandy
Great x 4 Grandmother: Sprota
Great x 2 Grandfather: Richard "Good" II Duke Normandy
Great x 4 Grandfather: Unknown Dane
Great x 3 Grandmother: Gunnora Countess Ponthieu
Great x 1 Grandmother: Matilda Normandy Countess Flanders 8 x Great Granddaughter of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 4 Grandfather: Judicael Berengar Penthièvre I Count Rennes
Great x 3 Grandfather: Conan "Crooked" Penthièvre III Duke Brittany
Great x 2 Grandmother: Judith Penthièvre Duchess Normandy 7 x Great Granddaughter of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 4 Grandfather: Geoffrey "Greygown" Ingelger 1st Count Anjou
Great x 3 Grandmother: Ermengarde Gerberga Ingelger Duchess Brittany 6 x Great Granddaughter of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Great x 4 Grandmother: Adele of Meaux Countess Anjou 5 x Great Granddaughter of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Judith Welf Holy Roman Empress 6 x Great Granddaughter of King Alfred "The Great" of Wessex
Great x 4 Grandfather: Hermmann Billung Margrave Billung March
Great x 3 Grandfather: Bernard I Duke of Saxony
Great x 4 Grandmother: Hildegard Westerburg Margrave Billung March
Great x 2 Grandfather: Bernard II Duke of Saxony
Great x 1 Grandfather: Ordulf Duke of Saxony
Grandfather: Magnus Billung Duke Saxony
Great x 3 Grandfather: Harald King Vestfold
Great x 2 Grandfather: King Olaf "Stout" II of Norway
Great x 3 Grandmother: Åsta Gudbrandsdatter
Great x 1 Grandmother: Wulfhild of Norway