Does a participle in this kind of sentence agree with an object or not?

Question

She says, 'L'endroit qui m'a le plus marqué...' - why not 'marquée'?

Accepted Answer

Bonjour Tom,
You are correct! Well spotted! As Chris explained: the direct object pronoun m' refers to the narrator (a woman) so it should be 'marquée'. It has now been fixed. 
Merci et bonne journée !

Answer

Good question, Tom. Since a woman is speaking and referring to herself ("me"), which is, at the same time, the COD in the sentence, I would also expect marquée.

Answer

Hi Tom,I see "m'a le plus marqué" the object pronoun "me" as being indirect (to/on me).So the concordance is with L'endroit (nm) therefore marqué.Jim