We shall begin by studying Henry V and Agincourt, as Carol Adelman of the Hudson Institute and her husband, Ken (former US ambassador to the UN and director of the U.S. Arms Control & Disarmament Agency) have done.
The old joke is you find gentlemen trying to be auctioneers at Christie’s; at Sotheby’s it’s the other way round. So you may be surprised Sotheby’s, 1744, is the senior; Christie’s is an upstart founded in 1766.