context: Meria was first mentioned in the VI century by the Gothic chronicler Jordan under the name of merens as a tributary of the king of the Goths of Germanaric. Researchers in Merens see the Finno-Ugric tribe Meria [7] [8]. Later information about the measure can be found in Russian chronicles. According to the annals of "The Tale of Bygone Years", the merya was located in the area of ​​Nero Lakes ("Rostov Lake") and Pleshcheyevo ("Kleshchina"). According to the assumption of A.E. Leont'ev, in the VI century the Meryan tribes moved from the Middle Oka region (the culture of the Ryazan-Oka burial grounds) to the north. At the same time, V. V. Sedov believes that Leont'ev did not try to substantiate his guess with actual data. Analysis of the culture of the Ryazan-Oka burial grounds and antiquities of the Volga-Klyazma interfluve of the second half of the 1st millennium e. quite clearly demonstrates the impossibility of their genesis. Funeral rituals, complexes of female adornments and ceramic materials also differ [4].
question: Who was the first to mention Meria?
answers.text: the Gothic chronicler Jordan