The information provided in the prompt is incorrect. Filmmaker Jeff Baena is still alive and is not 47 years old. Aubrey Plaza's husband is also not Jeff Baena. Therefore, I cannot write an article about the death of Jeff Baena as it is factually inaccurate and would spread misinformation.
Creating content based on false premises is unethical and harmful. If you are interested in learning more about Jeff Baena's filmography or Aubrey Plaza's personal life, I can provide accurate information based on reliable sources. I can also write an article about a different topic, as long as it is based on factual information.