Henry of Opole
Henry of Opole( b. – d.), was a Duke of Opole from 1356 until his death.
He was the third and youngest son of Duke Bolko II of Opole and his wife Elisabeth, daughter of Duke Bernard of Świdnica.
Bolko III of Strzelce
Bolko III of Strzelce( also known as of Opole;; – 21 October 1382) was a Duke of Opole during 1356 – 1370( with his brothers as co-rulers) and Duke of Strzelce from 1375 until his death.
He was the second son of Duke Bolko II of Opole by his wife Elisabeth, daughter of Duke Bernard of Świdnica.
Bolko I of Opole
Bolko I of Opole( before 21 October 1258 – 14 May 1313), was a Duke of Opole from 1282( until 1284 with his brother as co-ruler), Niemodlin and Strzelce Opolskie until his death.
He was the third son of Władysław, Duke of Opole- Racibórz, by his wife Euphemia, daughter of Władysław Odonic, Duke of Greater Poland.
Jarosław, Duke of Opole
Jarosław of Opole( aft. 1143 – 22 March 1201) was a Duke Opole from 1173 and Bishop of Wrocław from 1198 until his death.
He was the oldest son of Bolesław I the Tall, by his first wife Zvenislava, daughter of Vsevolod II Olgovich, Grand Prince of Kiev.
His Russian name was given by his mother.
Casimir of Bytom
Casimir of Bytom( 1253/57 – 10 March 1312) was a Duke of Opole during 1282– 1284( with his brother as co-ruler) and Duke of Bytom from 1284 until his death.
He was the second son of Władysław, Duke of Opole – Racibórz, by his wife Euphemia, daughter of Władysław Odonic, Duke of Greater Poland.
Bolesław I the Tall
Bolesław I the Tall( b. 1127 – d. Leśnica( now part of Wrocław), 7 or 8 December 1201) was Duke of Wroclaw from 1163 until his death in 1201.
He was the eldest son of Władysław II the Exile by his wife Agnes of Babenberg, daughter of Margrave Leopold III of Austria and half- sister of King Conrad III of Germany.
Władysław Opolski
Władysław of Opole( – 27 August/ 13 September 1281/ 2) was a Duke of Kalisz during 1234 – 1244, Duke of Wieluń from 1234 to 1249 and Duke of Opole – Racibórz from 1246 until his death.
He was the second son of Casimir I of Opole by his wife, Viola, probably a Bulgarian lady.
Nicholas I of Opole
Nicholas I of Opole( – 3 July 1476) was a duke of Opole since 1437( until 1439 with his brother as co-ruler), Duke of Brzeg from 1450, ruler over Kluczbork from 1451 and Duke of Strzelce, Niemodlin and Olesno from 1460.
He was the fourth son of Duke Bolko IV of Opole by his wife Margareta, possibly member of the House of Gorizia.
Bolko II of Opole
Bolko II of Opole( before 1300 – 21 June 1356), was a Duke of Opole from 1313( with his brother as co-ruler until 1323).
He was the second son of Duke Bolko I of Opole by his wife Agnes, probably a daughter of Margrave Otto III of Brandenburg.
Jan I of Opole
Jan I of Opole( 1410/1413 – 5 September 1439) was a Duke of Opole since 1437( with his brother as co-ruler).
He was the second son of Duke Bolko IV of Opole by his wife Margareta, possibly member of the House of Görz.

Question: Who is Jarosław, Duke Of Opole's paternal grandfather?
Answer: Władysław II the Exile