 Lothar died fighting the Slavs in the Battle of Lenzen, as did Lothar I, Count of Walbeck.Thietmar describes his great-grandfathers (called Liuthar in his Chronicon), as “distinguished men, the best of warriors, of illustrious lineage, and the honour and solace of the homeland.”

Lothar married Swanhild of Saxony and had four children