Detail of Mary Cavendish, with a large Tudor ruff

What's On

Unseen Treasures of The Portland Collection

25 March 2023 — 31 December 2025

This exhibition offers a new, revealing look at the world-class art collection.

The museum is filled to the brim with fascinating art and objects, a giant cabinet of curiosities. See silver and tapestry, paintings and jewels; art that has come home after a long loan to a prestigious national gallery, and stunning star items that visitors know and love – such as Michelangelo’s ‘Madonna of Silence’ or the pearl earring worn by Charles I at his execution.

A highlight of the display is a Picture Gallery, stacked with Tudor and Jacobean portraits – many of which have never been seen publicly before.


Top: (Detail) Mary Cavendish (born 1554) Bess of Hardwick’s daughter, In the style of Marcus Gheerhaets the Younger, around 1580 © Harley Foundation, The Portland Collection


Visitor Information

This exhibition is on show in the Museum.

Free entry


Unseen Treasures of The Portland Collection is supported by Bonhams


Learn more

Explore: Michelangelo

See Michelangelo’s ‘Madonna del Silenzio’ – the Madonna of Silence.

Explore: Queen Mary II’s Coronation Ring

Learn about this ring which features an inscredible rare ‘Pigeon Blood’ ruby – which are the purest and must vividly hued.

Explore: Discovering Geldorp

Discover how art historian Karen Hearn identified a rare work by George Geldorp in The Portland Collection.