Read the excerpt below from Life of Caesar by Plutarch and answer the question that follows. At Rome, moreover, Caesar won a great and brilliant popularity by his eloquence as an advocate, and much good will from the common people for the friendliness of his manners . . . . He had also a large and gradually increasing political influence in consequence of his lavish hospitality and the general splendour of his mode of life. At first his enemies thought this influence would quickly vanish . . . . [T]he man who is thought to have been the first to see beneath the surface of Caesar’s public policy and to fear it, . . . and who comprehended the powerful character hidden beneath his kindly and cheerful exterior, namely Cicero, said that in most of Caesar’s political plans and projects he saw a tyrannical purpose . . . . Based on this excerpt, what information could Shakespeare use to construct the character of Julius Caesar?