You see a spook in Castle Dangerous.

You then recognise the portrait in the hall, or elsewhere.
The temptation to recognise the spook rather more clearly than you really do, is considerable, just as one is tempted to recognise the features of the Stuarts in the royal family, of the parents in a baby, or in any similar case.
Nothing is more common in literary ghost stories than for somebody to see a spectre and afterwards recognise him or her in a portrait not before seen.

There is an early example in Sir Walter Scott's Tapestried Chamber, which was told to him by Miss Anna Seward.
Another such tale is by Theophile Gautier.

In an essay on Illusions by Mr.James Sully, a case is given.

A lady (who corroborated the story to the present author) was vexed all night by a spectre in armour.