Answer:
Antonio suggested to Sebastian to kill his brother Alonso to get the kingdom of Spain for himself.
Step-by-step explanation:
William Shakespeare's "The Tempest" revolves around the story of two dukes and their fight for power. The story also focuses on the love story between Miranda, the daughter of the former duke, and Ferdinand, son of Alonso, king of Spain who had helped usurp the former duke.
In Act II scene i, while their other companions were lulled to sleep by Ariel's "solemn music", Antonio began to persuade Sebastian to kill his brother Alonso so that he will become king of Spain. He suggested "Say, this were death . That now hath seized them; why, they were no worse Than now they are." He carried on to tell him what he had achieved by overthrowing his brother Prospero,
"And look how well my garments sit upon me;
Much feater than before: my brother's servants
Were then my fellows; now they are my men."