Dashed left edge = started before August 1040 ·
Dashed right edge = ongoing beyond August 1040
Events in August 1040 3
1001 – 1040Duncan I of Scotland (1001-1040)Died 14 August 1040, aged 39Duncan I became King of Scotland in 1034, succeeding his grandfather Malcolm II. His reign was marked by unsuccessful military campaigns, including a failed siege of Durham. He was killed in battle by Macbeth, who succeeded him as king.
1040Macbeth becomes King of ScotlandMacbeth kills Duncan I in battle and takes the throneMacbeth, Mormaer of Moray, defeated and killed King Duncan I at the Battle of Pitgaveny near Elgin. He then claimed the Scottish throne, ruling for the next seventeen years. The episode later formed the historical basis for Shakespeare's play Macbeth.
1040Battle of ChlumecDuke Bretislav I of Bohemia routs an invading German armyHoly Roman Emperor Henry III led an invasion of Bohemia to punish Duke Bretislav I, who had seized Polish territory and refused to pay tribute. The German army was ambushed and decisively defeated in the Chlumec pass. The defeat forced Henry III to abandon the campaign and negotiate with Bretislav the following year.