Theophylact Simocatta
Burial customs, at least in southern Poland, included raising kurgans. The urn with the ashes was placed on the mound or on a post thrust into the ground. In that position, few such urns survived, which may be the reason why Slavic burial sites in Poland are rare. All dead, regardless of social status, were cremated and afforded a burial, according to Arab testimonies (one from the end of the 9th century and another one from about 930). A Slavic funeral feast practice was also mentioned earlier by Theophylact Simocatta.