As the title says. Rosa Luxemburg was a German communist political leader and philosopher who ended up killed after the German Revolution was put down, and she was discovered and murdered by German Freikrops troops shortly afterwards.
It should perhaps be noted she thought the revolution was a huge mistake initially, but supported it once it was underway. Either successfully disassociating herself from it (unlikely) or merely a successful escape seems like the most likely PODs for her to survive.