Simplify the following text for a Grade 9 native English-speaking person.
Original: Frida Kahlo de Rivera ( July 6 , 1907 â `` July 13 , 1954 ; born Magdalena Carmen Frieda Kahlo y CalderÃ n ) was a Mexican painter , born in CoyoacÃ n , and perhaps best known for her self-portraits .
Simplified: Magdalena Carmen Frida Kahlo y CalderÃ n ( July 6 , 1907 â `` July 13 , 1954 ) , usually known as Frida Kahlo , was a Mexican painter .