Etymology and distribution of 相模.

Sagami 【相模】^{レベル4
About 1,300}  The Japanese surnames etymology dictionary.

Yamagata-ken Sakata-shi , Hokkaidou , Toukyou-to . Thing . From the white flag. Genji's flag's white flag was convinced of the victory by seeing the white clouds flying in the sky as they headed toward the flattening of the role in the ninth year that was in 1051 (6 years of age) to 1062 (Kōpei 5 years) From. The white flag shrine in the Kanto region has a tradition that it was erected as a warrior praying for war victory when Yoritomo of the warrior of the Heian period and the Kamakura period went to the Tohoku region. 源 Minamoto reference.