‘They cost their weight in gold, and they are worth it’ — the drawings of Jean-Honoré Fragonard

Despised by Dürer and jailed by the Pope: Marcantonio Raimondi, master printmaker

Decoding the secrets of Casa Mollino

Alberto Zanetti

Collecting guide: Bulgari jewellery

Virtual tour: Classic Week highlights at Christie's London

‘It’s so rare to find a double-sided drawing from this period — with two artists’ work on it’

Viewing Room: Italian drawings from the Robert Landolt Collection

Virtual tour: Classic Week at Christie’s London

Virtual tour: Classic Week at Christie’s London

‘The perfect line’: How Rembrandt made some of his greatest works

Collecting guide: Old Master prints