Marks in graveyards

[Francine Bernier <f_bernier@videotron.ca>]

Greetings o all,
 I remember reaing a few years ago about some red mark painted (I supposed)
on a wall in some graveyeards (South of France). Apparently, that secret
mark would indicate that an member of a royal family was buried somewhere in
the graveyard. Does anyone have any reference about this? Sounds like a
silly question right out of the bleu but I am curious! Maybe Niven Sinlair
or William Buehler could help me with this.
Francine

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