How many of us, when rooting through the family holdings, have not wondered if we have a couple too many Titians, a bit of a Van Dyck surplus, or, if we're honest, perhaps a few more Poussins than we really need? So it is with Francis Ronald Egerton, seventh Duke of Sutherland, whose "prudent review of assets" has prompted him to offer a pair of Titians to the nation at a knockdown price.