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.
Countess Louise Sophie of Danneskiold-Samsøe
Countess Louise Sophie af Danneskiold- Samsøe( 22 September 1796 – 11 March 1867) was a member of a Danish noble family descended illegitimately from Christian V of Denmark and the wife of Christian August II, Duke of Schleswig- Holstein- Sonderburg- Augustenburg.
She was the grandmother of German Empress Auguste Victoria, wife of the last German Emperor Wilhelm II.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
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:
Tjuyu
Tjuyu( sometimes transliterated as Thuya or Thuyu) was an Egyptian noblewoman and the mother of queen Tiye, and the wife of Yuya.
She is the grandmother of Akhenaten, and great grandmother of Tutankhamun.
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.
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:
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:
Hubba bint Hulail
Hubba bint Hulail was the grandmother of Hashim ibn' Abd Manaf, thus the great- great- great- grandmother of the Islamic" Nabī"( Prophet) Muhammad ibn Abdullah.

Question: Who is the paternal grandmother of Conrad Ii, Duke Of Bavaria?
Answer: Gisela of Swabia