Complex sentence: Renewed interest in the Hungarian artists of 20th-century Paris has generated recent major exhibits of Ervin Marton and his contemporaries in Vienna, Austria (2004), and Kecskemét (2004) and Budapest, Hungary (2007 and 2010).
Split into simpler sentences: Renewed interest in the Hungarian artists of 20th-century Paris has generated major 21st-century exhibits of Ervin Marton and his contemporaries. These include exhibits in Vienna, Austria (2004), and Kecskemét (2004) and Budapest, Hungary (2007 and 2010).