In The Netherlands, people who could afford it used to be buried inside churches; the graveyard outside was not good enough for them.
This is why you can still find many tombstones in the floors of older Dutch churches; so many in fact, it is not always possible to cross a church's floor without walking over graves.
Here's an example of a beer brewer's grave inside the Bergkerk in Deventer, The Netherlands:
Unfortunately, even beer brewers don't live forever.
People of nobility usually bought larger and more elaborately carved stones, like this one from 1558:
I had to stitch two photos together to make that picture; the stone covered a rather large surface.
Some of the buried were more terse about it:
It does get the message across, though.
Memento mori!