Roswitha Esser
Esser also won seven medals at the ICF Canoe Sprint World Championships with two golds ( K-2 500 m: 1963 , 1970 ) , four silvers ( K-1 500 m: 1966 , K-4 500 m: 1963 , 1966 , 1971 ) , and a bronze ( K-4 500 m: 1970 ) . 
<triplet> 1970 <subj> ICF Canoe Sprint World Championships <obj> sports season of league or competition <triplet> 1971 <subj> ICF Canoe Sprint World Championships <obj> sports season of league or competition