Historical Events In June - 23
Tuesday, 23 June 2026
0758 Ho-tse Shen-hui, Zen teache/ isciple of Hui-neng, dies at 74 

0930 World's oldest parliament, the Iceland Parliament, established 

1018 Henry I of Austria 

1053 Norseman Robert Guiscard gains victory at Civitate over papal forces raised by Leo IX, who is captured Robert, 38, takes Benevento from the Byzantines and founds the Norman Empire that will rule southern Italy until 1194 

1075 Theoduinus, Beiers prince-bishop of Liege, dies. 

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1137 Adalbert I, archbishop of Mainz (1111-1137), dies 

1139 Andries van Kuik, bishop of Utrecht, dies 

1160 Johannes de Matha, French sain/ ounder (Trinitarians) 

1295 Pope Boniface VIII enters Rome 

1298 Duke Albrecht von Habsburg chosen Roman Catholic German king. 

1305 French-Flemish peace treaty signed at Athis-sur-Orge. 

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