István Koós was born 1770 and died 1840 Hungary of unspecified causes. He married Zsuzsanna Fáy (1790-1832) 1814 .
Residences
Footnotes (including sources)
István Koós was born 1770 and died 1840 Hungary of unspecified causes. He married Zsuzsanna Fáy (1790-1832) 1814 .