By Joel Leaver Hugh Bonneville has reportedly been on “a string of dates” with fellow actor Claire Rankin and he’s said to have even taken her to an event at Buckingham Palace last month. It comes just months after Hugh, 60, separated from his now estranged wife Lulu Williams, 55. It was announced in September last year that the exes, who have a son together, had split up after more than two decades of marriage. The actor – known for his roles in Downton Abbey and the Paddington film series – is now said to be dating Claire, 53. She’s understood to have spent time with Hugh recently whilst vis…