Konstantinos Christou , was an insurgent leader associated first with the proBulgarian Internal Macedonian Revolutionary Organization and later with the proGreek irregular fighters during the Greek struggle for Macedonia. Christou was born in the village of Rulja in 1863 and was president of Roulia, from 1893 to 1896. He began antiOttoman rebel activity in 1898, and then killed four local Ottoman officers. Later he became one of the first leaders of the Macedonian struggle.
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Source: Wikipedia