Numerous world leaders and royals have gathered in Rome for Pope Francis' funeral. Among the most prominent figures at the Vatican's St Peter's Square on Saturday morning were Prince William, US President Donald Trump and his predecessor Joe Biden, Britain's Prime Minister Sir Keir Starmer and French President Emmanuel Macron. Their attendance comes at a fragile time for international diplomacy, with Trump meeting Ukraine's President Volodymyr Zelensky before the service. So among the VIP attendees, who sat next to whom? Trump was in a front-row seat near Francis' coffin, alongside his wife Melania Trump, across the aisle from Macron and...