Hi Claude,

It can be quite tricky.

Rappeler [à quelqu'un] = to remind [someone] in French

I think you need to employ rappeler (qqn) à (qqn) so "Je me rappelle votre frere" would follow this format. The sense being "I remember (recall) your brother to myself" The direct object is "votre frere" and the indirect object is "me".

This is how I see it  --  hope it helps.

Jim

The preferred form for "rappeler", as Jim mentioned, is without "de". Using "de" makes it sound more colloquial.

As Jim notes, this is a complicated subject and “common usage” abounds. 

Se rappeler is correct according to Larousse, Robert and the Académie, and none of these list “se rappeler de” as being correct, except maybe when followed by a pronoun or in ne pas de constructs etc etc 

In fact, the Académie specifically notes that “se rappeler de” is incorrect, but it is clearly commonly used enough for it to include a specific “dire/ne dire pas” note about it (these notes frequently indicate common errors/usage by native speakers). https://www.dictionnaire-academie.fr/article/DNP0225 

As the lesson here explicitly contradicts the Académie, and states that ‘se rappeler de’ is colloquially acceptable without qualification (and there are more than mentioned), its use shouldn’t be marked incorrect. Unless there was another error, both forms should be accepted. 

No wonder, I think I hear more use of se souvenir de…