Portrait of a Lady and her Daughter was begun in the 1550s
A Titian masterpiece found in a garage and expected to fetch £5m has failed to sell at auction in London.
Portrait of a Lady and her Daughter was not seen for more than 400 years before it was rediscovered.
The picture needed 20 years of painstaking and elaborate restoration work before it was finally displayed in public in 2001.
Titian never completed the painting but it was reworked by one of his pupils after his death in 1576.
It is thought to depict Titian's daughter Emilia with one of his granddaughters.
The restored Titian was in a sale with 54 other Old Masters that raised £16.5m.
The world record auction price for a Titian is £7.48m for Venus and Adonis, which was sold in 1991.