  radu i was a ruler of the principality of wallachia, (c. 1377 â c. 1383). his year of birth is unattested in any primary source. he was the son of nicolae alexandru and half-brother and successor to vladislav i . he is identified by many historians as the legendary radu negru, a mythical voievode of the early medieval state wallachia, founder of the state's institutions and ruler. == beginning of reign == he may have started his reign as sole ruler after 9 july 1374 when the last documentary mention of his brother as being alive is dated. unfortunately, there aren't any internal documents that could attest his reign. there are a few external mentions of him, primarily documents of the kingdom of hungary and a contemporary italian chronicle and also a late pisanie, an inscription on the walls of curtea de argeÈ cathedral and an important quantity of coins (ducati, dinari and bani) which were emitted by the voievod . == conflicts with the kingdom of hungary == the relations with the hungarian kingship during his reign remained tense, resulting in armed conflicts. the details of these fights remain unclear. an italian chronicle "cronaca carrarese" tells about an expedition of the hungarian king louis the great between 5 july - 14 august 1377 with the intention of subduing a one âradano principe di bulgaria infedeleâ (italian), identified with radu i. these tense relations which preceded the fight are confirmed by the registers of the venetian republic where, in the same year, a large order of full-equip armors made by the wallachian voievod appears. these armors were to be worn by those "armadura da cavali", 10.000 at number (a slightly exaggerated number) who were defeated in battle against the hungarian king as pointed out by the italian chronicle. it is hard to tell whether the troops of the wallachian voievod were truly defeated, as from the internal documents of the kingdom of hungary which were published in the next period, it appears that the hungarian king still had the intention of subduing the unfaithful voievod. thus on 19 november of the same year, the king promised the saxon traders of transylvania from brasov that if wallachia becomes his possession he reduces the d
History_of_Wallachia_(1242a1386) House_of_Basarab Rulers_of_Wallachia