Wenceslaus of Płock
Wenceslaus( Wańko) of Płock( Masovian dialect:" Wańko Puocky"; 1293/97 – 23 May 1336), was a Polish prince member of the House of Piast, Duke of Płock since 1313 and vassal of Bohemia from 1329.
He was the third son of Bolesław II of Płock but the only born from his second marriage with Kunigunde, daughter of King Ottakar II of Bohemia.
He was probably named after his maternal uncle, King Wenceslaus II of Bohemia.
Ottokar II of Bohemia
Ottokar II (c. 1233 – 26 August 1278), the Iron and Golden King, was a member of the Přemyslid dynasty who reigned as King of Bohemia from 1253 until his death in 1278.
He also held the titles of Margrave of Moravia from 1247, Duke of Austria from 1251, Duke of Styria from 1260, as well as Duke of Carinthia and landgrave of Carniola from 1269.
With Ottokar's rule, the Přemyslids reached the peak of their power in the Holy Roman Empire.
His expectations of the imperial crown, however, were never fulfilled.
Anne of Bohemia (1290–1313)
Anne of Bohemia( 1290 –1313) was the eldest surviving daughter of Wenceslaus II of Bohemia and Poland and his first wife Judith of Habsburg.
Her siblings included Elisabeth of Bohemia and Wenceslaus III of Bohemia.
Wenceslaus II of Bohemia
Wenceslaus II Přemyslid (27 September 1271 – 21 June 1305) was King of Bohemia (1278–1305), Duke of Cracow (1291–1305), and King of Poland (1300–1305).
He was the only son of King Ottokar II of Bohemia and Ottokar's second wife Kunigunda.
He was born in 1271, ten years after the marriage of his parents.
Kunigunda was the daughter of Rostislav Mikhailovich, lord of Slavonia, son of a Grand Prince of Kiev, and Anna of Hungary, daughter of Béla IV of Hungary.
His great-grandfather was the German king Philip of Swabia.
Wenceslaus II was the grandfather of the Holy Roman Emperor, Charles IV.
He was a member of the Přemyslid dynasty.
Heinrich von Freiberg
Heinrich von Freiberg was a Middle High German narrative poet at the court of Wenceslaus II of Bohemia.
He is mainly noted for his continuation of Gottfried von Strassburg's" Tristan" in about 1290.
The work is preserved in three complete manuscripts and five fragments.
Margaret of Bohemia, Duchess of Wroclaw
Margaret of Bohemia( 21 February 1296 – 8 April 1322) was a daughter of Wenceslaus II of Bohemia and his first wife, Judith of Habsburg.
Anne of Bohemia, Duchess of Austria
Anne of Bohemia( 27 March 1323 – 3 September 1338), also known as" Anna of Luxembourg", was a daughter of John of Bohemia and his first wife, Elizabeth of Bohemia.
Anne was a member of the House of Luxemburg.
Elizabeth of Hungary, Duchess of Bohemia
Elizabeth of Hungary( 1145- 1189), was a Duchess consort of Bohemia, married to Frederick, Duke of Bohemia.
Her parents were King Géza II of Hungary and Euphrosyne of Kiev.
She served as regent of Bohemia twice in the absence of her spouse.
Margaret of Bohemia, Duchess of Bavaria
Margaret of Bohemia( 1313–1341) was the daughter of King John of Bohemia by his first wife Elisabeth of Bohemia( 1292–1330).
Agnes of Bohemia, Duchess of Jawor
Agnes of Bohemia( 1305 – 1337) was the only child of King Wenceslaus II of Bohemia by his second wife, Elisabeth Richeza of Poland.
She was a member of the Přemyslid dynasty.

Question: Which country Wenceslaus Ii Of Bohemia's father is from?
Answer: Austria