Antony I of Constantinople
| Antony I of Constantinople | |
|---|---|
| Ecumenical Patriarch of Constantinople | |
| Emperor Theophilos and patriarch Antony I during Thomas the Slav's siege, Madrid Skylitzes, 11th century. | |
| Installed | January 821 | 
| Term ended | 21 January 837 | 
| Predecessor | Theodotus I of Constantinople | 
| Successor | John VII of Constantinople | 
| Personal details | |
| Born | Antonios Kas(s)ymatas | 
| Died | 21 January 837 | 
| Denomination | Chalcedonian Christianity | 
Antony I of Constantinople (Greek: Ἀντώνιος Κασ(σ)υματᾶς, romanized: Antōnios Kas(s)ymatas; died 21 January 837) Ecumenical Patriarch of Constantinople from January 821 to 21 January 837.