John VII of Constantinople
| John VII of Constantinople | |
|---|---|
| Ecumenical Patriarch of Constantinople | |
| The embassy of John VII in 829, between Emperor Theophilos (right) and Caliph Al-Ma'mun, from the Madrid Skylitzes | |
| Installed | 21 January 837 | 
| Term ended | 4 March 843 | 
| Predecessor | Antony I of Constantinople | 
| Successor | Methodius I of Constantinople | 
| Personal details | |
| Born | John Morocharzanios | 
| Died | Before 867 | 
| Denomination | Chalcedonian Christianity | 
John VII of Constantinople, surnamed Grammatikos or Grammaticus, i.e., "the Grammarian" (Greek: Ἰωάννης Γραμματικός, romanized: Iōánnēs Grammatikos; died before 867), was Ecumenical Patriarch of Constantinople from 21 January 837 to 4 March 843, died before 867. He is not to be confused with the much earlier philosopher John Philoponus.