Attributed to Hieronymus Bosch

One picture under this heading is 28 centimetres tall and is a piece of something larger: the head of a halberdier, a soldier carrying a long axe-headed pike, cut from a painting that is now lost. It came to the Prado in 1916 with the bequest of Pablo Bosch, a Madrid collector whose surname is pure coincidence.

Attributed to is the strongest thing a catalogue can say short of the artist's name standing alone. The Prado does not go even that far with the head: its own record lists the panel as a copy after Bosch, made in the second half of the sixteenth century, two generations after he died. Another picture shows how slippery the ground is. It is a small triptych of the Adoration of the Kings at Upton House in Warwickshire, painted around 1495, with the donors and their patron saints on the wings and a half-naked figure in the stable doorway that the National Trust identifies as the Antichrist. Its central composition is a variant of one that also exists at the Prado, in Philadelphia and at the Metropolitan, and a design repeated that often is exactly where one hand stops being separable from another.

The Trust has owned the triptych since 1948, when Lord Bearsted gave it along with the house. He had bought it in 1936 from the dealer Robert Langton Douglas for 5,250 pounds.