Henriette his wife, Lady Selina Caroline, wife of the Count of Clam-Martinic and a young Napoleon II, as well as various French and Prussian ministers. In May 1819, still under orders from the Prince Regent, he left Vienna for Rome to paint Pope Pius VII and Cardinal Consalvi. President of the Royal Academy Lawrence arrived back in London 30 March 1820 to find that the president of the Royal Academy, Benjamin West, had died. That very evening Lawrence was voted the new president, a position he would hold until his death 10 years later. George III had died in January; Lawrence was granted a place in the procession for the coronation of George IV. On 28 February 1822 he was elected as a Fellow of the Royal Society "for his eminence in art". The royal commissions continued during the 1820s, including one for a portrait of the king's sister Sophia, and one of Sir Walter Scott (along with Jane Austen, one of Lawrence's favourite authors), as well as one to paint King Charles X of France for the Waterloo series, for which Lawrence made a trip to Paris, taking Herman Wolff with him. Lawrence acquired another important patron in Robert Peel, who commissioned the painter to do portraits of his family as well a portrait of George Canning. Two of Lawrence's most famous portraits of children were painted during the 1820s: that of Emily and Laura Calmady, daughters of Charles Calmady, and that of Master Charles William Lambton, painted for his father Lord Durham for 600 guineas and known as The Red Boy. The latter portrait attracted much praise when it was exhibited in Paris in 1827. One of the artist's last commissions was of future prime-minister the Earl of Aberdeen. Fanny Kemble, a niece of Sarah Siddons, was one of his last sitters (for a drawing). Lawrence died suddenly on 7 January 1830, just months after his friend Isabella Wolff. A few days previously he had experienced chest pains but had continued working and was eagerly anticipating a stay with his sister at Rugby, when he collapsed and died during a visit from his friends Elizabeth Croft and Archibald Keightley. After a post-mortem examination, doctors concluded that the artist's death had been caused by ossification of the aorta and vessels of the heart. Lawrence's first biographer, D. E. Williams suggested that this in itself was not enough to cause