Henry VIII of Legnica
Henry VIII of Legnica( ca. 1355 – 12 December 1398) was a Duke of Legnica since 1364( nominally and together with his brothers) and Bishop of Włocławek since 1389 until his death.
He was the fourth of Wenceslaus I, Duke of Legnica, by his wife Anna, daughter of Casimir I, Duke of Cieszyn.
Wenceslaus I, Duke of Luxembourg
Wenceslaus I (also "WenceslasVenceslasWenzel", or "Václav", often called Wenceslaus of Bohemia in chronicles) (25 February 1337 – 7 December 1383)
was the first Duke of Luxembourg from 1354.
He was the son of John the Blind, King of Bohemia, and Beatrice of Bourbon.
Bolesław IV of Legnica
Bolesław IV of Legnica( ca. 1349 – 3/4 March 1394) was a Duke of Legnica since 1364( nominally; together with his brothers).
He was the third son of Wenceslaus I, Duke of Legnica by his wife Anna, daughter of Casimir I, Duke of Cieszyn.
Rupert I of Legnica
Rupert I of Legnica( 27 March 1347 – by 12 January 1409) was a Duke of Legnica since 1364 until his death, and also regent over half of the Duchy of Głogów- Żagań during 1397 – 1401.
He was the eldest son of Wenceslaus I, Duke of Legnica, by his wife Anna, daughter of Casimir I, Duke of Cieszyn.
He was born after eight years of childless marriage.
Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
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.
John of Bohemia
John of Bohemia (10 August 1296 – 26 August 1346), also known as John the Blind, was the Count of Luxembourg from 1313 and King of Bohemia from 1310 and titular King of Poland.
He was the eldest son of the Holy Roman Emperor Henry VII and his wife Margaret of Brabant.
He is well known for having died while fighting in the Battle of Crécy at age 50, after having been blind for a decade.
Adam Wenceslaus, Duke of Cieszyn
Adam Wenceslaus of Cieszyn( 12 December 1574 – 13 July 1617), was a Duke of Cieszyn from 1579 until his death.
He was the second but only surviving son of Wenceslaus III Adam, Duke of Cieszyn, by his second wife Sidonia Katharina, daughter of Francis I, Duke of Saxe- Lauenburg.
His older half- brother, Frederick Casimir, only son of Wenceslaus III Adam's first marriage, died a few years before he was born, in 1571.
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.
Hedwig of Legnica
Hedwig of Legnica( ca. 1351 – 1 August 1409) was a Polish princess and member of the Piast dynasty, in the Legnica branch.
By marriage Hedwig was Duchess of Żagań.
She was the fourth child and only daughter of Wenceslaus I, Duke of Legnica and his wife Anna, daughter of Casimir I, Duke of Cieszyn.

Question: Who is Wenceslaus I, Duke Of Luxembourg's paternal grandmother?
Answer: Margaret of Brabant