After the street brawl of Act 1 Scene 1 Prince Escalus announces that in future streetfighting in Veronal will be a capital offence. This is why Romeo has to flee to Padua when he kills Tybalt. He...
The prince said that if the capulets and the montagues had another fight again, the people involved in the fight would get killed.
He says that fighting in public would be punishable by death.
mercutio
His name is Prince Escualas