Describe shahrayar and shahzamans relationship with one another and characterize their kingdom

In "The Frame Story," he rules over the kingdom of India and begins the practice of marrying wives and killing them the next morning until Scheherazade begins to tell him stories every night. Brother to Shahzaman. In "The Frame Story," Shahzaman rules over the kingdom of Samarkand and reveals to his brother Shahrayar that his wife is cheating on him.