Well, in a 'cruel king story', there may be an event where the king, in his cruelty, cuts off the food supply to a certain part of his kingdom as a form of punishment. This leads to famine and death among the people there. Another event could be that he arranges false trials for those he wants to get rid of, sentencing them to death or long - term imprisonment without any real evidence. And perhaps he uses his power to take away the rights of women in the kingdom, forcing them into a life of servitude and oppression.
Since I don't know the exact 'cruel king story', it's hard to say the main events. But generally, in a cruel king story, there might be an event where the king unjustly seizes land from his nobles or commoners. Another could be his cruel treatment of prisoners, perhaps subjecting them to inhumane conditions.
The main events include his discovery of a powerful necromantic artifact under Nagash's guidance. This artifact enhanced his powers greatly. Also, his participation in a major battle against a coalition of forces opposed to Nagash was a crucial event. He used his undead legions to great effect in this battle and his cruel tactics on the battlefield became legendary among the dark forces.
Since I don't know the exact 'Suicide King Story', I can't tell the main events. It could be about a king's inner turmoil leading to a suicidal decision.
In the King Neptune story, a significant event is his creation of new sea species. Also, his meetings with other gods to discuss the boundaries between the sea and land are important events.
One main event is the solving of the Sphinx's riddle by the Theban king. Another is the discovery of his true identity which led to his downfall.
One of the main events is that King Nala lost his kingdom after losing a game of dice. He then had to go through a period of exile where he faced many difficulties. Another important part is that his wife Damayanti remained loyal to him throughout his absence. Eventually, he regained his kingdom through his own efforts and with the help of the gods.
There were also events related to external threats. The Theban king had to defend the city from invaders. This might involve forming alliances, building up the military, and making strategic decisions. For instance, during times of war with neighboring city - states, the king's leadership in warfare and diplomacy was crucial to the survival of Thebes.
One main event could be the fight for the throne. When an old king dies or is overthrown, other lions will compete for the position of king. Another event is the hunting. The king often leads or participates in the hunt to provide food for the pride. And sometimes, there is the event of protecting the territory from other lion groups or predators.
Since I don't know the exact Ashura King story, it's hard to list the main events. But generally, it might involve his ascension to the throne as the Ashura King.
Since I don't know the full story of King Kashyapa, but perhaps his ascension to the throne and his first major decision as king could be main events. Also, if there were any significant battles he led or diplomatic meetings he held, those would likely be main events as well.
The main event was the battle at Thermopylae. King Leonidas and his 300 soldiers faced the vast Persian army there. Another event was their initial defense of the narrow pass which gave them an advantage at first. Also, the final stand of the Spartans when they knew they were going to be overrun but still fought bravely is a significant part of the story.