Julius Caesar died because of his subjects. They stabbed him and the people did not try to help him at all. Mark Antony committed suicide by stabbing himself with his sword. He did ask his servents to do it for him but they refused.
When Cleopatra was making friends with powerful courtiers she fell in love with two men. They were Julius Caesar and Mark Antony. She had four kids with the two men. One was with Caesar is known as "Little Caesar" I don't think they made pizza in Egypt though. and three with Antony which is Ptolemy Philadelphus, Cleopatra Selene, and Alexander Helios.
After Cleopatra died her buddies wanted to come with her in the afterlife. Since Cleo died Egypt lost its most famous.... queen. Cleopatra's body has never been discovered so we don't really know how she dies.
Cleopatra was at an early age when her family was at war. When she was 18 years old when she became queen. Then she knew the enemies would try to kill her, but they underestimating her so she made friends with powerful courtiers. Did you know Cleo called her the sun god's daughter. Cleo had herself in a rolled carpet and delivered to Julius Caesar. He was impressed by Cleopatra's courage and her daring.