How connoisseurs left a paper trail across Europe

A notable historical link connects three exhibitions of drawings with heterogeneous subjects and aims that each open this month.
Fra Bartolommeo: Master of the Florentine High Renaissance at the Museum Boijmans van Beuningen, Rotterdam, marks the quincentenary of the artists death with 120 of his drawings from the permanent collection, along with 20 from other museums. A Swede in Paris in the 18th Century: the Tessin Collection at the Louvre (organised with the Nationalmuseum in Stockholm) is a