Leśmian and Chylińska had two daughters, one of who, Wanda "Dunia" Leśmianówna, would later marry British adventurer and traveller Denis Hills. Actress and singer Gillian Hills - famous for her brief appearances in Antonioni's "Blowup" and Kubrick's "A Clockwork Orange" in two similar scenes - was born of this marriage in 1944. Leśmian was also nephew of the famous poet and writer of the Young Poland movement, Antoni Lange, and the cousin of another notable poet of the epoch, Jan Brzechwa.