Vicarius
| Periods | 
|---|
| 
 | 
| Constitution | 
| Political institutions | 
| Assemblies | 
| Ordinary magistrates | 
| Extraordinary magistrates | 
| Public law | 
| Senatus consultum ultimum | 
| Titles and honours | 
Vicarius is a Latin word, meaning substitute or deputy. It is the root of the English word "vicar".