Michelle, who has played Lady Mary in the period drama since it began in 2010, was awarded the Television Icon prize during the ceremony at London's Claridge's Hotel, and her co-star Lily was given the Breakthrough accolade.

Lily, who played Lady Rose, left the show last year (14) but has confirmed she will be reprising her role for the Christmas special, the last ever episode of the series, which airs in Britain over the holidays (15).

Speaking of returning to Downton Abbey, Lily told the magazine, "It was amazing to go back after a break. I don't know if I'd be sitting here if it weren't for Downton."

Kate Winslet was named British Icon, Nicole Kidman won Theatre Icon for her portrayal of scientist Rosalind Franklin in West End play Photograph 51, and Ellie Goulding was handed the Musician of the Year award.

Actress Ruth Wilson took home the prize for Outstanding Performance for TV series The Affair, Sienna Miller won the British Actress award, and Lara Stone was named Model of the Year.