What city was created inside of rome that houses the catholic pope?

In what ways are some local executive branches structured in a similar manner to state executive branches, and in what ways are some structured differently?

What would be the most relevant question to ask to find out why tutankhamen died? what was tutankhamen’s age when he died? was a doctor with tutankhamen at his death? why was tutankhamen mummified after his death? did tutankhamen’s body have evidence of disease?

Which powers best complete this graphic?