Complex sentence: Itala Fulvia Villa (b.1913; d.1991) was an Argentinian architect whose main forte was city planning and she was associated with designing the urban plan for the city of Buenos Aires.
Split into simpler sentences: Itala Fulvia Villa (b.1913; d.1991) was an Argentinian architect whose main forte was city planning. She was an integral part of creating and designing the urban plan for the city of Buenos Aires.