What Vatican military unit was formed by Pope Pius IX in 1850 and later was used as an honor guard before being disbanded in 1970?

What Vatican military unit was formed by Pope Pius IX in 1850 and later was used as an honor guard before being disbanded in 1970?

Corsican Guard
Cuirassiers Regiment
Saint Peter’s Guard
Michelangelo Regiment
Palatine Guard

Answer: The correct answer is Palatine Guard.