Lada and Lado are alleged Slavic deities. Lada was first mentioned around 1405–1412 in the sermons of Lucas of Wielki Koźmin, which warned against worshipping Lada and other gods during spring ceremon
Maximilian Presnyakov: "Lada" ("Slav cycle"), 1998.
Mikhail Nesterov, Dva lada
Kupala Night is one of the major folk holidays in some Slavic countries. It coincides with the Christian feast of the Nativity of St. John the Baptist and the East Slavic feast of Saint John's Eve. In
Lada (mythology)
…according to whom Lado is a distorted form from laide or leide, and Brückner, according to whom Lado was borrowed into Lithuanian songs along with the Kupala night, and several other Lithuanian scholars who rejected the deity's authenticity. He also recalls that the Slavic deity Lada/Lado is regarded with distrust…
Ivan Kupala. Fortunetelling on the wreaths, by Simon Kozhin, 2009
Night on the eve of Ivan Kupala by Polish painter Henryk Siemiradzki, 1880s, Lviv National Art Gallery
A fragment of a Russian icon symbolizing summer (from left to right): • George the Victorious, on whose day the summer season begins • John the Baptist, on whose day the summer solstice is celebrated • Demetrius of Thessaloniki, on whose day the summer season ends
Ivan Kupała, fern flower. (Ukraine stamp), 1997