Simplify the following text for a Grade 6 native English-speaking person.
Original: The early English spelling was derived from Old East Slavic form KyjevÑ ( Cyrillic : Ð Ñ Ä Ñ '' Ð Ñ ) , derived from Kyi ( Ð Ð Ð ) , the legendary founder of the city .
Simplified: Kyiv or Kiev ( Ukrainian : Ð Ð Ñ -- Ð ) is the capital city of the country of Ukraine .