Leopold II, Duke of Austria
Leopold II, Duke of Austria( 1328 – 10 August 1344), a member of the House of Habsburg, was the younger son of Duke Otto the Merry.
The sons of Otto by his first wife, Elizabeth of Bavaria, a daughter of Stephen I, Duke of Bavaria by his marriage to Jutta of Schweidnitz, after their father's death in 1339 Leopold and his brother Frederick II( 1327 – 1344) were both titular Dukes of Austria, but both died before coming of age.
On 10 August 1344, at the age of sixteen, Leopold died suddenly.
On 11 December 1344, four months later, his brother Frederick also suddenly died.
In both cases, there were suspicions of poisoning.
The beneficiary of their deaths was their uncle Albert II, Duke of Austria, the brother of Otto, who continued to rule Austria until his death in 1358.
Sigismund, Duke of Bavaria
Sigismund of Bavaria (26 July 1439 – 1 February 1501) was a member of the Wittelsbach dynasty.
He ruled as Duke of Bavaria-Munich from 1460 to 1467, and then as Duke of Bavaria-Dachau until his death.
Stephen II, Duke of Bavaria
Stephen II (1319 – 13 May 1375, Landshut) was Duke of Bavaria from 1347 until his death.
He was the second son of Emperor Louis IV the Bavarian by his first wife Beatrice of Silesia and a member of the Wittelsbach dynasty.
Taddea Visconti
Taddea Visconti, Duchess of Bavaria (1351 – 28 September 1381) was an Italian noblewoman of the Visconti family, the ruling house in Milan from 1277 to 1447.
She was the first wife of Stephen III, Duke of Bavaria, and the mother of the French queen Isabeau of Bavaria.
Stephen II of Iberia
Stephen II( Step'anoz II), of the Chosroid dynasty, was a presiding prince of Iberia( Kartli, eastern Georgia) from 637/642 to c. 650.
The son and successor of Adarnase I, Stephen pursued his father ’s pro-Byzantine politics and was probably bestowed by the Emperor with the title of" patricius".
In 645, however, he was forced to recognize the Caliph as his suzerain when the Arabs moved into Georgia.
He was succeeded by his son, Adarnase II.
The exterior stone plaque of the church of the Holy Cross at Mtskheta, Georgia, mentions the principal builders of this church:
Stephanos the" patricius", Demetrius the" hypatos", and Adarnase the" hypatos" who have traditionally been equated by the Georgian scholars with Stephen I, son of Guaram; Demetre, brother of Stephen I and Adarnase I. However, an opinion expressed by Professor Cyril Toumanoff disagrees with this view by identifying these individuals with Stephen II, Demetre( brother of Stephen I), and Adarnase II( son of Stephen II), respectively.
Stephen III, Duke of Bavaria
Stephen III( 1337 – 26 September 1413), called the Magnificent or the Fop(" Stephan der Kneißl"), was the Duke of Bavaria- Ingolstadt from 1375.
He was the eldest son of Stephen II and Elizabeth of Sicily.
Frederick, Duke of Bavaria
Frederick( 1339 – 4 December 1393) was Duke of Bavaria from 1375.
He was the second son of Stephen II and Elizabeth of Sicily.
Louis IV, Holy Roman Emperor
Louis IV (1 April 1282 – 11 October 1347), called the Bavarian, of the house of Wittelsbach, was King of the Romans from 1314, King of Italy from 1327, and Holy Roman Emperor from 1328.
Louis IV was Duke of Upper Bavaria from 1294/1301 together with his elder brother Rudolf I, served as Margrave of Brandenburg until 1323, as Count Palatine of the Rhine until 1329, and he became Duke of Lower Bavaria in 1340.
He obtained the titles Count of Hainaut, Holland, Zeeland, and Friesland in 1345 when his wife Margaret inherited them.
John II, Duke of Bavaria
Duke John II of Bavaria- Munich( 1341 – 1397),( German:" Johann II, Herzog von Bayern- München"), since 1375 Duke of Bavaria- Munich.
He was the third son of Stephen II and Elizabeth of Sicily.
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.

Question: What is the date of death of Stephen Ii, Duke Of Bavaria's father?
Answer: 11 October 1347