Sisinnius II of Constantinople
|Ecumenical Patriarch of Constantinople|
|Church||Church of Constantinople|
|In office||12 April 996 – 24 August 998|
|Died||24 August 998|
According to the histories of John Skylitzes and Zonaras, he was extremely well educated, particularly in medical matters, and had been honoured with the office of magistros. He was elected to the patriarchate on 12 April 996, after the see had remained vacant for four years, due to the preoccupation of Emperor Basil II with his wars against the Bulgarians.
On 21 February 997 he issued a tomos on prohibiting marriage between persons related to the fifth or sixth degree. These regulations are soon after attested in juridical decisions, but appear to have also caused some opposition (Logos Antirrhetikos of Skribas Nikolaos, c. 1030/40). Two other canons on prohibitions related to marriages are also attributed to him, but are considered as fake by modern scholars. A later note in Skylitzes' account also reports that Sisinnius managed to finally lay to rest the quarrels of the Tetragamy affair of Leo VI the Wise (r. 886–912). In 997/8, he also issued a typikon concerning the provision of the Metropolitan of Alania in the patriarchal monastery of Epiphanios in Kerasus. Sisinnius was also the recipient of three letters from Leo of Synada.
- Official website of the Ecumenic Patriarchate of Constantinople
- Lilie, Ralph-Johannes; Ludwig, Claudia; Pratsch, Thomas; Zielke, Beate (2013). Prosopographie der mittelbyzantinischen Zeit Online. Berlin-Brandenburgische Akademie der Wissenschaften. Nach Vorarbeiten F. Winkelmanns erstellt (in German). Berlin and Boston: De Gruyter.