14 hours ago Sean Coughlan Royal correspondent, Reggio Emilia Watch: Princess Catherine joins pasta-making class in Italy The Princess of Wales's trip to Italy has been a reminder of how much the royals need her star quality. The visit to Reggio Emilia had been hailed as significant as her first overseas trip since her cancer diagnosis and treatment. It was her comeback tour, framed by her team as a "huge moment". But what the trip to Italy soon revealed was how important her glamour and popular appeal is to the Royal Family. She is a splash of movie-star colour and it's her face that the newspapers want to put on their front pages. Italians who waited to see her arrival on Thursday credited her sincerity and empathy as among the reasons they had tried to catch a glimpse of her. It's hard to pin down that mystery ingredient. But it was enough to draw crowds to see her in this northern Italian city, on what otherwise would have been a low-key fact-finding trip about an early years education project.…