Dame Maggie Smith, who died last year. Here, Samantha recalls a touching memory from her decades-long friendship with the actress and speaks about channelling her late mother in The Marlow Murder ...

Mark Williams, who played Arthur Weasley in seven of the eight Potter films, recalled a memory with Smith ... loving Lady I’ve ever met." He continued, "I’ve so many fond memories with Maggie.

Oscar-winning actor Maggie Smith died in a hospital aged 89 in September. Her friend, Dame Judi Dench, planted an apple tree in her memory.