On the face of a rich man's heir is written the rich man's memento mori!
His memento mori was in his bed-chamber, and sat by him at his frugal meal.
With their legend "Memento Mori" they were simply reminders of Death in the abstract.
And the Memento Mori of later centuries had its raison d'être.
The place is too modern for memento mori and the hour-glass and the skull.