Nera (Danube) Nera (Danube) The Nera (, or Нера, ) is a river running through Romania and Serbia. It is a left tributary of the Danube, which it joins near Banatska Palanka. The Nera rises in the Semenic mountains, the easternmost part of the Banat region, south of the city of Reșița, in the Caraș-Severin County of Romania. The river starts at the confluence of headwaters of the Nergana and Nerganița then flows straight to the south from the Piatra Grozbe peak, under which it springs. Reaching the village of Borlovenii Vechi, the Nera turns southwest, flowing between the Semenic and Banat
Colombana nera of Colombana nera was likely in the posthumous work of the Italian viticulturist Giovan Vettorio Soderini that described a grape known as "San Colombane" growing in Tuscany and Emilia-Romagna in 1600. That early synonym and the grape's current name is believed to be taken from the Abbey of San Colombano in Bobbio where Colombana nera has a long history of being grown. The exact origin of Colombana nera is unknown but DNA evidence showing a parent-offspring relationship between the grape and the old Tuscan wine grape Mammolo suggest that Tuscany may be the variety's homeland. Colombana nera is a late