Mateli Magdalena Kuivalatar

Mateli Magdalena Kuivalatar (8 May 1777 – 29 December 1846) was a Finnish-Karelian folksinger, seer, and cunning woman. She is regarded as the most noted among the known Finnish-Karelian folksingers of her sex. She was a strong influence on "Kanteletar" by Elias Lönnrot.
Life.
Mateli Magdalena Kuivalatar was born 8 May 1777, and her family belonged to the peasantry class. She was the sixth of eleven children of Antti Antinpoika Kuivalainen (d. 1741) and Valpuri Matintytär Muroke Tohmajärven Oskolasta. She married Pietari (Pekka) Antinpoika Ikonen in 1793 and had eleven children. She was widowed in 1832. 
Elias Lönnrot encountered Kuivalatar in September 1838. He was by then almost done with the "Kanteletar", but after meeting her and realizing her knowledge of the subject, he revised his work and started all over again. Her folk songs were rare, and often centered around a young woman's longing for love. Her poems were also included events of the "Kalevala".
She died of cancer.