often we use in english an anglo-saxon word followed by a french word in a redundant way, i.e., "will and testament", but in this case both are latin based words. however think of it this way. if someone makes mention of your name, that is a compliment. if they make brief mention of your name, well, not so much. so it does seem mention, brief as it may imply, can still be modified.
Refer to something briefly and without going into detail.
A reference to someone or something.