(Frederick Barbarossa is also known as Frederick I.)
1. When was Frederick Barbarossa first elected German king and Holy Roman Emperor?
a) 4 March 1152
b) 10 May 1151
c) 26 July 1145
d) 18 December 1148
2. Which concordat did Frederick Barbarossa violate?
a) Concordat of Bologna
b) Concordat of Tonsberg
c) Concordat of Worms
d) Concordat of Zurich
3. Who crowned Frederick Barbarossa emperor on 18 June 1155?
a) Eugene III
b) Lucius II
c) Celestine V
d) Adrian IV