[6] Historian Pál Engel says that Voivode Bogdan led a large group of Vlachs from Serbia to Hungary on this occasion.

However, the use of titles such as "vojvoda" and "knez", along with the name Bogdan, suggests a Slavic rather than Aromanian composition within that group.

[1] When Charles I's son, Louis I of Hungary, ascended the throne in July 1342, Bogdan had already been the voivode of the Voivodeship of Maramureș.

[15] According to historians Radu Carciumaru and Victor Spinei, Louis I's attempts to limit the voivodes' privileges caused the conflict.

[15] Spinei writes that the king exploited the conflicts between the leading Vlach families to depose Bogdan with the assistance of local knezes, thus hindering him from rising up in open rebellion.

[19] On this day, the Eger Chapter determined the boundaries of the domain of Bogdan's two nephews, Stephen and John, in Cuhea.

[16] According to the earliest Moldavian chronicles, it came into being when a Vlach lord, Dragoș, and his people left Maramureș and settled on the banks of the Moldova River in the late 1340s or the 1350s.

[25] Victor Spinei writes that Dragoș's example encouraged Bogdan to cross the Carpathian Mountains, especially because he knew that the Vlachs in Moldavia were opposed to Louis I's authority.

[19] According to a royal charter, dated to 2 February 1365, Bogdan and his (unnamed) sons had "stealthily" fled from Hungary because they wanted to seize Moldavia.

[26][27] In retaliation, Louis I of Hungary confiscated Bogdan's domain in Maramureș and donated it to Balc and his brothers.

[31] Radu Carciumaru proposes the same year; he says that Bogdan took advantage both of a conflict between Louis I of Hungary and Charles IV, Holy Roman Emperor and of the decisive victory of the Lithuanians over the Tatars in the Battle of Blue Waters.

[28][33] John of Küküllő mentioned that Louis I's army often invaded Moldavia, but the "number of Vlachs inhabiting that land increased, transforming it into a country".

[30][41] The list of the voivodes of Moldavia, recorded in the Bistrița Monastery in 1407, begins with Bogdan, without referring to his predecessors, Dragoș and Sas, who were mentioned in all Moldavian chronicles.

[42] In Turkic documents, Moldavia was mentioned as "Kara-Boğdan", or "Black Bogdan", from the late 14th century onward, which also shows his fame.