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 "", 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 who were defeated in battle against the Hungarian king although the battle itself may have been inconclusive and without a clear result 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
Brașov that if Wallachia becomes his possession he reduces the dues. On the contrary, in an order given to the landlord of
Orșova in 1382 through which he was obliged to forbid any foreign trader to enter Wallachia with merchandise and to keep guard of the border "day and night" reporting everything that happened, there is no mention of a Hungarian
ban of Severin, and Orșova appears as border point thus suggesting that the Eastern part of
Banat was annexed by the Wallachian voievod Radu I. Maybe linked to this fact is the strange name given to the voievod in the biography of
Sigismund of Luxembourg in which, speaking of
Vlad Dracul, it is said that he was the son of "Merzeweydan" (
Mircea) and grandson of "Pankraz dem Weisen" (Pankraz the Wise). The name Pankraz (Pancratius) is explained from the deterioration of the name Radu Ban (
ban of Severin, title taken after the conquest of the territory). Nevertheless, the Wallachian voievod, in another Hungarian document which is contemporary with the events of 1377, bears the name "Godon" as well strange and unclear. == Other accomplishments ==