We can say that the oldest example of the form of "Kimigayoha" appears in the version of "Wakanroeishu (Japanese and Chinese poems to sing)" at the beginning of the Kamakura Period (巻下祝, Kokka Taikan No. 343).
「君が代は」の型は『和漢朗詠集』の鎌倉時代初期の一本に記すものなどが最も古いといえる（巻下祝、国歌大観番号775番）。