Sarah Siddons of feminine propriety. Commissioned and completed in 1784, Sir Joshua Reynolds' portrait, "Sarah Siddons as The Tragic Muse", is characterized by Reynolds' inspiration, contextualisation of the Muse, and distinctive brush work and paint palette. This portrait, as Heather McPherson writes, became the known depiction of tragedy, infused with contemporary ideas about acting and representation of the passions in Siddons' melancholy expression and deportment. Mary Hamilton's correspondence with her fiancé illuminated its seamless transition from "the artist's studio to the theatrical stage", practical venues that interlocked in the eighteenth century and formed a large part in creating the very idea of
Sarah Siddons and was considered by some a "grotesque effigy of her former self." William Hazlitt, in his later accounts, stated that her performances lacked the grandeur they had shown in 1785: the "machinery of her voice is slow, there is too long a pause between each sentence [and the] sleeping scene was more laboured and less natural". As a result, according to Lisa Freeman, Siddons' "iconic status came into conflict with the aesthetic of authenticity that she cultivated". Her last appearance was on 9 June 1819 as Lady Randolph in John Home's play "Douglas". Theatre biographer Henry Barton Baker wrote: On