The Battle of Alexandria was a clash of forces between Mark Antony troops who dominated the East and Octavian armies of the final wars of the Roman Republic.
Cleopatra VII Philopator (January 69 BC – August 12, 30 BC) was the last Pharaoh of Egypt's Ptolemaic dynasty. Cleopatra of Alexandria – Ancientvine
Although defections had begun before the Battle, Mark Antony managed to win that battle. However, the next day, Octavian launched a second attack that took Egypt.
With the assassination of Julius Caesar, the Roman Republic became a confusion that led to a third civil war in Rome. Gaius Octavian came to Rome to claim what he considered his legacy to be adopted as son of Caesar, well-nephew.
30 BC Battle of Alexandria: Mark Antony achieved a minor victory over Octavian's forces, but most of his army subsequently deserted, leading to his suicide.
The Battle of Alexandria marked the beginning of the end of Mark Antony and Cleopatra.