Final answer:
The question concerning deaths in a crowd outside a royal palace in Germany is not clearly connected to a specific historical event based on the provided references. The references mention the Kristallnacht atrocities and the casualties of World War II but do not address a specific incident at a German royal palace.
Step-by-step explanation:
The question appears to be referencing a historical event involving a crowd outside a royal palace in Germany. However, there is no specific event mentioned that matches the description provided. It is important to note that gathering outside Buckingham Palace is mentioned in the context of the British reaction to World War I, while the Kristallnacht pogrom mentioned refers to violence against Jews in Germany and Austria without a specific mention of a royal palace. To directly address your question, accurate data regarding deaths in a crowd outside a royal palace in Germany is not provided in the historical contexts referenced.
During Kristallnacht in 1938, 96 Jewish people were killed in the violent outbreaks across Germany and the recently annexed territories. Furthermore, World War II led to unprecedented casualties, with seventy to eighty-five million people killed including military personnel and civilians, due to various effects of the war.