Henry I (archbishop of Mainz)
Henry I  | |
|---|---|
| Archbishop of Mainz | |
| Church | Catholic Church | 
| Diocese | Electorate of Mainz | 
| In office | 1142–1153 | 
| Personal details | |
| Born | c. 1080 | 
| Died | 1/3 September 1153 | 
Henry, in German Heinrich (c. 1080 – 1/3 September 1153), was the archbishop of Mainz from September 1142 until his deposition in June 1153.