Namesakes
German Kings and Holy Roman Emperors:
1 emperor, 1 king-emperor
Emperor Lothar I 817-855 
King-Emperor Lothar III of Saxony 1125-1137
Notable Athletes:
1 soccer
(soccer) Lothar Matthäus 1961-
Notable Musicians:
1 singer
Ray Slijngaard (a.k.a. Lothar) 1971-
Olympic Medalists:
2 bronze, 1 silver
(bronze) Lothar Knörzer 1956 4x100 m relay
(silver) Lothar Milde 1968 discus throw
(bronze) Lothar Krieg 1976 4x400 m relay