Ludwig IV von Thuringia ^{1 2}

   Cause of his death was plague.

  Research Notes:

Thuringia is named after the Thuringian people who occupied it around 300 AD, Thuringia came under Frankish domination in the 6th century, forming a part (from 1130 a landgravate) of the subsequent Holy Roman Empire. After the extinction of the reigning Ludowing line of counts in 1247 and the War of the Thuringian Succession (1247-64), the western half became independent under the name of Hesse, never to become a part of Thuringia again. Most of the remaining Thuringia came under the rule of the Wettin dynasty of nearby Meissen, the nucleus of the later duchy and kingdom of Saxony. With the division of the house of Wettin in 1485, Thuringia went to the senior Ernestine branch of the family, which subsequently subdivided the area into a number of smaller states, according to the Saxon tradition of dividing inheritance amongst male heirs. These were the Saxon Duchies. They consisted of the states of Saxony-Weimar, Saxony-Meiningen, Saxony-Altenburg, Saxony-Coburg, Saxony-Gotha, Schwarzburg-Sondershausen, Schwarzburg-Rudolstadt and the two principalities of Reuß.

  Medical Notes:

... en route to the Sixth Crusade.

  Noted events in his life were:

• He was a Landgrave of Thuringia.

Ludwig married Saint Elisabeth of Hungary, daughter of Andrew II of Hungary and Gertrude of Andechs-Meran, in 1221. (Saint Elisabeth of Hungary was born in 1207 and died on 17 Nov 1231 in Marburg.)