The auction house is holding a programme of exhibitions and events in its Bond Street saleroom this month.
The exhibitions, which run until June 15, are Power & Image: Royal Portraiture & Iconography and Power & Image: Royal & Aristocratic Tiaras.
Royal Portraiture & Iconography is focused on five centuries of female monarchs with portraits of Britain’s seven queens and accompanying historic manuscripts.

This Armada Portrait of Elizabeth I is on loan for Sotheby’s Power & Image: Royal Portraiture & Iconography exhibition.
Image copyright: Woburn Abbey
The exhibition is led by the Armada Portrait of Elizabeth I, on loan from the Woburn Abbey collection.
The festival will also include a series of lectures, readings, musical performances and book launches.

Queen Mary I (1554) by Hans Eworth is on loan at the Sotheby's exhibition.
Image: Society Of Antiquaries Of London.
Sotheby's has also themed its auction at the end of the month. British Art: The Jubilee Auction on June 29 is focused on British art from the Old Masters to Contemporary art.
For more information visit: sothebys.com/jubileefestival