Historical Events In April - 18
Saturday, 18 April 2026
0310 St Eusebius begins his reign as Catholic Pope 

0387 Bishop Ambrosius of Milan baptizes Augustinus 

1025 Bolesław Chrobry is crowned in Gniezno, becoming the first King of Poland 

1480 The birth of Lucrezia Borgia, Duchess of Ferrara 

1506 The cornerstone of the current St. Peter's Basilica is laid. 

1518 Bona Sforza is crowned as queen consort of Poland 

1521 Parliament of Worms: Cardinal Alexander questions Maarten Luther 

1552 Mauritius of Saksen occupies Linz 

1599 Valencia arch duke Albrecht of Austrian marries Isabella of Spain 

1663 Osman declares war on Austria 

1666 Peace of Kleef: Netherlands & bishop Von Galen of Munster 

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