Miranda Hart has revealed her beloved dog Peggy has died and shared a touching tribute to her pooch.The comedian took to Instagram to tell of her heartbreak at the death of the Shih-Tzu Bichon Frise cross, who she wrote a book about in 2016.The Call The Midwife star, 48, also announced she would be 'taking a break' from showbiz in order to grieve.The star wrote on Sunday: "Last week I said goodbye to my beautiful, darling dog Peggy.