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# From the Mongol Invasion to the Battle of Mohács

The main source on the Mongol invasion is ROGERIUS's Siralmas ének, which has been published in, inter alia, SZENTPÉTERY, Scriptores rerum Hungaricarum. The resultant loss of life is discussed in Ladomér ZICHY, A tatárjárás Magyarországon (Pécs, 1934) and József FÉLEGYHÁZI, A tatárjárás kútfőinek kritikája (Vác, 1943). György GYÖRFFY has estimated that half of the population perished, a proportion that is perfectly plausible in the case of Transylvania ('Einwohnerzahl und Bevölkerungsdichte in Ungarn bis zum Anfang des CIV. Jahrhunderts', Études Historiques [Budapest, 1960]). On the broader context, see A. SACERDOŢEANU, Marea invazie tătară şi sud-estul european, (Bucharest, 1933). On the activities of the Knights of St. John in the Cumanians' Land, see Ede REISZIG, 'IV. Béla király és a János-lovag-rend Magyarországon' (Sz 35: 1901). On the province of Severin before and after the Mongol invasion, see Holban, Din cronica, pp. 49-89). On the resettlement Székelys and Saxons in Transylvania after the Mongol invasion, Nägler, Die Ansiedlung. Data on Romanian immigration can be {1-788.} found in Documenta Valachorum. On the Romanians' legal status and the sheep tax, see Karel KADLEC, Valaši i valašske pravo v zemich slovans-kých a uherskych (Prague, 1916); G.E. MÜLLER, Die mittelalterlichen Verfassungs- und Rechtseinrichtungen der Rumänen des ehemaligen Ungarns (Hermannstadt, 1938); and Al. DOBOŞI, Datul oilor (quinquagesima ovium) (Bucharest, 1937).

Fr. PALL, 'Cancelaria voievodului Transilvaniei la începutul secolului al XIV-lea' (RA, 1960). On the Turkish threat, see G. GÜNDISCH, 'Die Türkeneinfälle in Siebenbürgen bis zur Mitte des 15. Jahrhunderts' (Jahrbücher für Geschichte Osteuropas, II: 1937).

T. POPA, Iancu Corvin de Hunedoara (Bucharest, 1928); C. MUREŞAN, Iancu de Hunedoara (Bucharest, 1968);