Complex sentence: The history of the California Art Club is intertwined with that of the Painters Club of Los Angeles, which was founded in March 1906 by a group of California's early professional artists in order to arrange exhibitions and further the fine arts in the Southland.
Split into simpler sentences: The history of the California Art Club is intertwined with that of the Painters'Club of Los Angeles. This group was founded in March 1906 by a collective of California's early professional artists in order to arrange exhibitions and further the fine arts in the Southland.