Maria Cornelia Vreeken (née Corry Bouwman, also Corry Vreeken-Bouwman) is a Dutch chess player who holds the title of Woman Grandmaster (WGM, 1987). She is a five-time winner of the Dutch Women's Chess Championship (1960, 1962, 1964, 1966, 1970).
Cornelia "Corry" Brokken (1932 – 2016) was a Dutch singer, television presenter and jurist. In 1957, she won the second edition of the Eurovision Song Contest with the song "Net als toen", representing the Netherlands. Throughout her career, she scored a number of hits, sang in the popular Sleeswijk Revue with Snip en Snap, and had her own television show. She was also the presenter of the Eurovision Song Contest 1976, which was held in The Hague, Netherlands, following the victory of Teach-In the year before. She ended her career as a singer in 1973 to study law, after which she became a lawyer and ultimately a judge.