Complex sentence: Some European chronicles claim Baidar was killed near Olmutz in 1240, but these records appear to have been inaccurate, as Baidar later participated in the election of Güyük Khan in 1247.
Split into simpler sentences: Some European chronicles claim Baidar was killed near Olmutz in 1240. He participated in the election of Güyük Khan in 1247.