[1] Born in Kalundborg, Rørup studied at the Royal Danish Academy of Fine Arts under Ejnar Nielsen and Sigurd Wandel, graduating in 1930.
His early paintings are rather dark but after spending some time in France studying the works of the Impressionists, his palette became brighter and his colours more intense, forming a webbing of light and shade.
He travelled widely in the 1950s, producing many drawings and sketches in various European countries.
[1] In 1950, together with his wife, Rørup bought a dilapidated homestead in Åsen near Ordrup in Odsherred where he spent the rest of his life.
[4] Rørup's paintings have been exhibited across Denmark and in Rostock, Stockholm and Ukraine.