Frederick IV of Liegnitz
Frederick IV, Duke of Legnica( 20 April 1552 – 27 March 1596) was Duke of Legnica since 1571 until his death( as a co-ruler of his elder brother during 1571 – 1576 and 1580 – 1581).
He was the third but second surviving son of Frederick III, Duke of Liegnitz, by his wife Katharina, daughter of Henry V, Duke of Mecklenburg.
He was named after his brother Frederick, who died in 1551, one year before his birth.
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.
Frederick III, Duke of Upper Lorraine
Frederick III (1020 – 1033) was the Count of Bar and Duke of Upper Lorraine from the death of his father, Frederick II, in 1026 or 1027 to his own death.
His mother was Matilda of Swabia, daughter of Herman II, Duke of Swabia.
His father had been co-duke since 1019 and his grandfather, Thierry I, continued to reign until his own death in 1027 or 1028.
His reign is completely obscure.
Even his regent is unknown.
He died young and his county of Bar passed to his sister Sophie while Lorraine was given to Gothelo I, Duke of Lower Lorraine.
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:
Sophie, Countess of Bar
Sophie of Bar( c. 1004 or 1018 – January 21 or June 21, 1093) was sovereign Count of Bar and lady of Mousson between 1033 and 1093.
She succeeded her brother, Frederick III, Duke of Upper Lorraine, ruled in co-regency with her spouse Louis, Count of Montbéliard, and was succeeded by her son Frederick of Montbéliard.
Beatrice of France
Beatrice of France or Beatrice of Paris( c. 938- 23 September 1003) was duchess consort of Upper Lorraine by marriage to Frederick I, Duke of Upper Lorraine, and regent of Upper Lorraine in 978-980 during the minority of her son Thierry I.
Frederick III, Duke of Saxe-Gotha-Altenburg
Frederick III, Duke of Saxe- Gotha-Altenburg( 14 April 1699 – 10 March 1772), was a duke of Saxe- Gotha- Altenburg.
Frederick III of Legnica
Frederick III, Duke of Legnica  (22 February 1520 – 15 December 1570) was a Duke of Legnica during 1547–1551 and 1556–1559 (both times was deposed by Habsburgs Emperors Charles V and Ferdinand I).
He was the eldest son of Frederick II, Duke of Legnica-Brzeg, by his second wife Sophie, daughter of Frederick I, Margrave of Brandenburg-Ansbach.
Adalbert, Duke of Lorraine
Adalbert( 1000 – 11 November 1048 in Thuin) was the Duke of Upper Lorraine from 1047 until his death the next year.
He was the first son of Gerard de Bouzonville( Gerhard), Count of Metz, and Gisela( Gisella), possibly a daughter of Theodoric I, Duke of Upper Lorraine.
Gothelo I, Duke of Lower Lorraine and Upper Lorraine, died in 1044 and was succeeded by his son Godfrey III in Upper Lorraine but was refused Lower Lorraine.
Irritated, Godfrey rebelled in that same year and devastated his suzerain's lands in Lower Lorraine.
He was soon defeated and Adalbert named in his place in Upper Lorraine.
Godfrey continued to fight for all Lorraine and Adalbert died in battle against him at Thuin on 11 November 1048.
He had no known children, and Henry III, Holy Roman Emperor immediately nominated his brother Gerhard to succeed him.
Augusta Marie of Holstein-Gottorp
Augusta Marie of Holstein- Gottorp( 1649 – 1728) was a German noblewoman.
She was the daughter of Frederick III, Duke of Holstein- Gottorp and Duchess Marie Elisabeth of Saxony.
Through her daughter Albertine Frederica, she is the great- grandmother of Catherine II and great- great- grandmother of Paul I of Russia.
She married Frederick VII, Margrave of Baden- Durlach on 15 May 1670 in Husum.
They had the following children:

Question: Who is Frederick Iii, Duke Of Upper Lorraine's paternal grandmother?