Eurovision song contests 1956-58 have two artists in common, Swiss Lys Assia and Dutch Corry Brokken. Lys managed to win in 1956 but Corry only placed 7th (apparently) with Voorgoed voorbij.
But she was back the year after and won with Net als toen. She was a runaway winner with her 31 points vs runner up's 17. (Lys only scored 5 and placed 8th out of 10).
But Corry didn't stop there. She was back again for the third time in a row in 1958 as previous winner with Heel de wereld and got only one point and shared last place. This didn't have any effect in her succesful career in the 1950's and 1960's. She stopped her musical career and started studying law and became an attorney in late 1970's, after having presented the Eurovision song contest 1976 in The Hague. She was also the Dutch spokesperson in 1997 after a brief comeback to music business with an album Nooit geedacht in 1996 and performing live again.
She died in 2016 at the age of 83.