He is perhaps best known for supervising four matches in the FIFA World Cup two in 1986 and two in 1990.
Siegfried Line | Siegfried & Roy | Siegfried | Siegfried (opera) | Siegfried Wagner | Siegfried Matthus | Siegfried Lenz | Siegfried Palm | Siegfried II of Westerburg | Siegfried von Feuchtwangen | Siegfried Kasche | Siegfried, Count of Merseburg | Siegfried Bernfeld | ''Siegfried'' | Chris Siegfried | Bernhard Siegfried Albinus | Wolf pack Siegfried | Siegfried Verbeke | Siegfried Tiefensee | Siegfried Strelow | Siegfried Selberherr | Siegfried Saloman | Siegfried Reiprich | Siegfried of Luxembourg | Siegfried of Isenburg-Kempenich | ''Siegfried Map'' of the Türlersee | Siegfried Lenz. | Siegfried Köhler | Siegfried III | Siegfried Idyll |