Izborsk (Russian: Избо́рск; Estonian: Irboska; Seto: Irbosk, Irbuska) is a rural locality (village) in Pechorsky District of Pskov Oblast, Russia. It contains one of the most ancient and impressive fortresses of Western Russia. The village lies 30 kilometers (19 mi) to the west of Pskov and just to the east of the Russian-Estonian border.(Wikipedia)
"Izborsk. Slovenskie kliuchi."