In addition, 'Saikyo' and 'Nishi no Kyo' were used as an alias for Ukyo (west part of capital) of Heian-kyo which lost its control as the capital at the end of Heian period (On the other hand, Sakyo (east part of capital) was called as 'Rakuchu').
また、平安時代後期以後に荒廃して都市機能を失ったかつての平安京右京の異称として「西京」または「西ノ京」が用いられた（これに対して左京を「洛中」と呼ぶようになる）。