Conrad II, Duke of Merania
Conrad II( died 8 October 1182) was the Duke of Merania( or Dalmatia) from 1159 until his death.
He became Count of Dachau( as Conrad III) in 1172.
Conrad was the only child of Conrad I, Duke of Merania, and Matilda of Falkenstein.
He was only a child when his father died and he inherited Merania.
When he came of age, he received Dachau from his uncle Arnold.
Contemporary documents call him" dux de Dachawe" or" Dachau".
Conrad II was the last Wittelsbach duke as he died without heirs and was buried in Scheyern beside his father, grandfather, and great- grandfather.
Merania passed then to the House of Andechs.
Erenfried I
Erenfried I of Maasgau is the count of Bliesgau,,, and the count of Charmois( fl. 866–904).
He married Adelgunde of Burgundy( 860–902), a daughter of Conrad II, Duke of Transjurane Burgundy, Count of Auxerre, and Judith de Frioul.
They left issue:
Henry III, Holy Roman Emperor
Henry III( 28 October 1017 – 5 October 1056), called the Black or the Pious, was Holy Roman Emperor from 1046 until his death in 1056.
A member of the Salian Dynasty, he was the eldest son of Emperor Conrad II of Germany and Gisela of Swabia.
His father made him Duke of Bavaria in 1026 after the death of Duke Henry V at the age of 9.
At the age of 11 in 1028, on Easter Day after his father had been crowned Holy Roman Emperor, Henry was elected King of Germany in the cathedral of Aachen, and crowned by Archbishop Pilgrim of Cologne.
To secure his ultimate transition to the throne, upon the death of Duke Herman IV in 1038, Conrad II named him Duke of Swabia as well as the King of Burgundy, which Conrad II had inherited in 1033.
Upon the death of his father on in 1039, Henry became the sole ruler of the kingdom, succeeding his father as Duke of Carinthia and King of Italy.
He was crowned Emperor by Pope Clement II in Rome in 1046.
Conrad II, Duke of Bavaria
Conrad II (September or October 1052, in Regensburg – 10 April 1055, in Regensburg), called the Child, was the duke of Bavaria from 1054 to 1055.
He was the second son of the Emperor Henry III and his second wife, Agnes of Poitou.
He was briefly appointed duke of Bavaria, which had been held by his elder brother Henry.
He died soon after and was replaced by Henry.
If Conrad I is not numbered (because of his alternative name Cuno), Conrad the Child is sometimes numbered Conrad I.
Adelaide of Auxerre (born c. 870)
Adelaide of Auxerre( born between 865- 870) was a Duchess consort of Burgundy in the Middle Ages.
She was the daughter of Conrad II, Duke of Transjurane Burgundy and his wife Waldrada of Worms.
In 888, she married Richard, Duke of Burgundy.
They had probably three or five children:
Sigismund, Duke of Bavaria
Sigismund of Bavaria (26 July 1439 – 1 February 1501) was a member of the Wittelsbach dynasty.
He ruled as Duke of Bavaria-Munich from 1460 to 1467, and then as Duke of Bavaria-Dachau until his death.
Agnes of Poitou
Agnes of Poitou, also called Agnes of Aquitaine or Empress Agnes (– 14 December 1077), a member of the House of Poitiers, was German queen from 1043 and Holy Roman Empress from 1046 until 1056.
From 1056 to 1061 she acted as Regent of the Holy Roman Empire during the minority of her son Henry IV.
Waldrada of Worms
Waldrada of Worms( or Waldraith; born 801, date of death unknown).
She was first married to Robert III of Worms, in 819 in Wormsgau, Germany.
This marriage brought in 830 a son, Robert IV the Strong.
The marriage ended when Robert III died in 834.
She was the second wife of Conrad II, Duke of Transjurane Burgundy.
They had two known children, Adelaide of Auxerre and Rudolph I of Burgundy.
Her father was Adrian, Count of Orléans( 758- 824), and mother was also named Waldrada, daughter of William of Gellone( William of Orange) 755-812.
Maria of Brabant, Duchess of Bavaria
Maria of Brabant( 1226–1256) was a daughter of Henry II, Duke of Brabant, and Maria of Swabia.
She married Louis II, Duke of Bavaria, being the first of three wives.
Frederick II, Duke of Upper Lorraine
Frederick II( c. 995–1026), son of Thierry I of the House of Ardennes and Richilde von Blieskastel, daughter of Folmar III, Count in Bliesgau; was the count of Bar and duke of Lorraine, co-reigning with his father from 1019.
On the Emperor Henry II's death in 1024, he joined Ernest II, Duke of Swabia, in revolt against the new king, Conrad II.
Soon they made peace and recognised the new king.
Frederick died soon after.
He married Matilda of Swabia, daughter of Herman II, Duke of Swabia, and sister- in- law of Conrad.
They had three children:

Question: What is the date of death of Conrad Ii, Duke Of Bavaria's mother?
Answer: 14 December 1077