A Titian Discovered?

Is this a Titian? Auction house Gilding's of Market Harborough in Leicestershire considered it to be a painting of the "18th century continental school" and estimated its value at £300 to £500. Come auction day, it sold for £205,000! Somebody took a gamble or knows his onions. If it is a Titian, it's worth at least £5m. It needs restoring and authenticating. I've adjusted the contrast and gamma settings to "clean" the original image, and it is certainly a masterly portrait. The clothing is a lot earlier than 18th century. Titian or not, this was a snip at £205,000.