Siegmund Mainka
Siegmund Mainka (born 4 July 1968) is a German sailor from Berlin who competed in three Paralympics games winning gold in 2008 and silver medal in 2012 in the Sonar class. Both medals were achieved with skipper Jens Kroker and fellow crew member Robert Prem. References

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1968 births
Living people
German male sailors (sport)
Paralympic sailors for Germany
Paralympic medalists in sailing
Paralympic gold medalists for Germany
Paralympic silver medalists for Germany
Sailors at the 2008 Summer Paralympics
Sailors at the 2012 Summer Paralympics
Sailors at the 2016 Summer Paralympics