Early life and education
Born in Urmia, West Azerbaijan, Iran to a wealthy feudal family, his father was Mohammad Vesugh Ghassemlou, a landowning Kurdish nationalist Agha and Khan from the Shekak tribe who was born in 1875. His mother was Nana Jan Timsar, also known as Fatima, was an Assyrian Christian. His father was an adviser to the Shah of Iran, who gave him the title “Wussuq-e Divan.” He completed his early education in Urmia and then on Tehran. He witnessed the era of the Republic of Mahabad and became a co-founder member of the youth wing of KDP-I at the age of 15. Ghassemlou moved to France to continue his studies at the Sorbonne. He meet his wife Helen Krulich in Czechoslovakia. They had two daughters together, Mina (1953) and Hewa (1955).
Abd-al-Raḥmān Qāsemlu was fluent in 8 languages Kurdish, Persian, Arabic, Azerbaijani, French, English, Czech, and Russian. He was also familiar with German.