Artemisia Gentileschi, Self Portrait as the Allegory of Painting (La Pittura), about 1638-9, Royal Collection Trust / © Her Majesty Queen Elizabeth II 2019 'I will show Your Illustrious Lordship what a woman can do’ (Letter from Artemisia Gentileschi to Don Antonio Ruffo, 7 August 1649) The rain was unrelenting on Friday but it did nothing to dampen the enthusiasm of the masked and socially-distanced art-lovers queuing outside the National Gallery to be admitted to the Artemisia exhibition on...