The Mercurius Treebank is a syntactically annotated corpus of the early newspapers 'Mercurius' and 'Annus Christi', published in 1667 and 1597, respectively. It comprises a total of 170.000 tokens and 8.400 syntactically annotated sentences. It was annotated using a hybrid annotation scheme based on TIGER, which combines both dependency and constituency information. Each text segment was independently annotated by two annotators using the nnotate tool (Brants and Plaehn, 2000).