6 historical events, 0 notable births, and 0 notable deaths in 1603.
1603 battle between the Ottoman Turks and the Safavid army of Shah Abbas I
1603 conflict during the Long Turkish War
Scottish clan battle on 7 February 1603
1603 military conflict in Estonia during Polish-Swedish War
1603 naval battle between a Spanish royal and a Dutch rebel fleet
1603 battle between Transsylvania and Walachia