Aaltje Noordewier–Reddingius
Aaltje Noordewier–Reddingius (née Reddingius; 1 September 1868, Deurne – 6 April 1949) was a noted Dutch classical soprano who had an active performance career in the concert repertoire from 1888 through the 1930s. She was also a celebrated voice teacher. From 1886 to 1890, she studied at the Conservatorium van Amsterdam. In 1893, she married painter Michiel Noordewier. She was a mentor to singers such as Aafje Heynis, Erna Spoorenberg and Laurens Bogtman. Legacy 
Main-belt asteroid 677 Aaltje, discovered by August Kopff at Heidelberg Observatory in 1909, was named in her honour. See also 
 Erna Spoorenberg

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1868 births
1949 deaths
Dutch women singers
Dutch sopranos
People from Deurne, Netherlands
Conservatorium van Amsterdam alumni