The Obrenovi?
Prominent members of this ethnic group were killed in the Slaughter of the Dukes. That event led to an uprising of these people in which The Proclamation was issued. A king of this people built the Monastery of the Holy Archangels and issued a namesake law code that banned simony. That king of this ethnic group, along with his father, used his elite unit, the Alemannic Guard, to win the Battle of Velbazhd and supported John V Palaiologus against John Kantakouznos. Stefan Dusan was a king of this ethnic group, and they were led by Black George during an uprising in the 19th century. The Obrenovi? Dynasty was established after the second uprising of this ethnic group, and a country named after this ethnic group was recognized at the Congress of Berlin. For ten points, name this ethnic group that rebelled against the Ottoman Empire and declared independence from Belgrade
Prominent members of this ethnic group were killed in the Slaughter of the Dukes.
Serbs [accept Serbians]