This UD treebank is a conversion of the PROIEL treebank of Old Church Slavonic, release 20170214, currently maintained at the University of Oslo. The treebank consists of the Codex Marianus, which contains a translation of parts of the New Testament Gospels. The original annotation guidelines are available at http://folk.uio.no/daghaug/syntactic_guidelines.pdf
The treebank was converted to UD by Dag Haug. The conversion code is released as part of the PROIEL command-line interface.