The earliest record of what is generally considered to be a Swedish king appears in Tacitus' work Germania, c. 100 AD (the king of the Suiones). However, due to scant and unreliable sources before the 11th century, lists of succession traditionally start in the 10th century with king Olof Skötkonung, and his father Eric the Victorious, who also were the first Swedish kings to be baptized. There are, however, lists of Swedish pagan monarchs with far older dates, but in many cases these kings appear in sources of disputed historical reliability. These records notably deal with the legendary House of Yngling, and based on the Danish chronicler Saxo Grammaticus, Erik Segersäll and Olof Skötkonung have often been classified as belonging to the Swedish house of Ynglings. However, according to Ic