Incidentally, it is said that Awa Province of Shikoku region and Awa Province of the Boso Peninsula (Chiba Prefecture) have phonetically the same name because the latter province was named as such by the Inbe clan people of Shikoku region when they migrated to it.
また、四国の阿波国と房総半島の安房国が何れも「あわ」と読むのは忌部氏が阿波から安房に行った際に命名されたとも言われている。