It is widely accepted as one of the most politically difficult portrait commissions in art history, requiring an understanding of the interplay of relationships with a depth ``worthy of Shakespeare'', in the opinion of art historians Rodolfo Pallucchini and Harold Wethey. However, it was one Titian seems to have resolved; while the complexity of the relationships is all on the canvas, it may have been intended as an indicator to Charles that Paul retained _his_ position as the dominant patriarch -- old and frail but still a man of vitality, and in control of his squabbling descendants. <sep>, Pronoun: his <sep>, A: Charles <sep>, B: Paul