Ototachibana Hime

…Meanwhile, in Sagami Province, he was deceived by the Kuni no Miyatsuko (Kuni no Miyatsuko) and was surrounded by wildfire, but he escaped with the Kusanagi sword and a flint in his bag. Also, at Hashirimizu Sea (Uraga Channel), he was hindered by the god of passage, so his empress Ototachibana-hime (Ototachibana-hime) drowned herself in place of the prince, appeasing the god and allowing the ship to proceed. On the slope of Ashigara, Yamato Takeru lamented for the third time, saying "Azuma-haya" (Oh, my wife), and this is said to be the origin of the place name "Azuma." …

*Some of the terminology that refers to "Ototachibana Hime" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…その間，相模国では国造（くにのみやつこ）に欺かれて野火に囲まれるが草那芸剣と袋の中の火打石によって難を逃れた。また走水（はしりみず）の海(浦賀水道)では，渡りの神の妨害にあい，后の弟橘比売（おとたちばなひめ）(弟橘媛)が皇子に代わって入水し神の心をなごめて船を進めることをえた。足柄の坂でヤマトタケルは三たび嘆いて〈あづまはや〉(わが妻よああ)といい，それが〈あずま〉の地名の起りとなったとされる。…

※「弟橘比売」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報