Haydut Velko Petrov

Haydut Velko Petrov is Bulgarian haydutin and Serbian Revolutioner from The First Serbian Uprising.He was  born in 1780 year in Lenovo near Zaychar. His father Petar have been well to do man he had thousents of sheeps. When he was 15 his father he gets servant to one Turk in Vidin, but soon he run and gets a Haydutin. When He is 23 he is haydutin in group of Haydut Stanoy Glavash. In 1804 he is taking part in uprising incited by Glavashs' group.In 1806 together with the group of brothers Vulichevi he is fighting for Belgrade. In 1807 incited by the Serbs, he gets uprising in Krivi Vir and Curna Reka.Haydut Velko is knowing by extraordinary bravery who makes him wide famous between Bulgarians and Serbs,but also he was self-willed and undisciplined and about this he had vrangles with Serbian managements.Haydut Velko had plans to free Timok Kraina and Norten Pomoravlje and to create Bulgarian Kingdom. Just about that he asks Serbian King Karadjordje Petrovic to takes with him all bulgarian volunteerin Serbian 
Serbian army.The King carris out thit that Velko wants and for this is bearing records the Serbian chronist and linguist Vuk Karadjic. When Haydut Velko is getting danger for Serbian cause Sebian king sent Stepan Zhinkovich with mission to remove him from the fight. Velko Petrov was slangered he was robing Serbian houses.
In 1810 he was prised by Russian Orden for bravery.By fyghts for Varvarin he was wounded in the left hand and maimed.In 1811 he became VoiVoda In Timok Kraina.He deaes on 9 august 1813 year in battle for Negotin.
Haydut Velko has tow marriages, like his second wife Kyuchuk Stana was hes favourite. Layter she has marriage with famous Greek capitan Yorgach. The life of Haydut Velko was described from Serbian Writer Vuk Karadjic.
According to the Serbian istoreography Haydut Velko was Serbian but the documents who get to as say he was Bulgarian Haydutin on Serbian post.    

I just tranlate Bulgarian Wikipedia with some mine adds from Youtube. Search "Хайдут Велко" and "Сръбската експанзия". And the question is what are the proves that Haydut Velko Petrov is Serbian? Is it enough?