Aurangzeb

You can say anything else about Mughal emperors, but their full names just roll smoothly

Jadzia

Poland fact: Jadzia is a real Polish name, diminutive of Jadwiga. It’s of course pronounced absolutely different than Star Trek name which in Polish would be spelled something like “Dżadzija”

Phrenology with extra steps

From the top of my head: Franz Ferdinand, regardless of actual influence on starting of WW1 (which i don’t think it’s that much), 4 years later the Austro-Hungarian monarchy was entirely dissolved so that’s something and JFK, since then no US president ever dared to endanger letters agencies even slightly.