神代貞総書状

（神代貞綱書状）

Keio University Media Center

Keio Object Hub

神代常親書状

Saga Prefectual Library

Saga Prefectural Library Database

神代茂良書状

Saga Prefectual Library

Saga Prefectural Library Database

神代直長書状

Saga Prefectual Library

Saga Prefectural Library Database

長貞書状

史料編纂所

ADEAC: A System of Digitalization and Exhibition for Archive Collections

岡貞行書状

Saga Prefectual Library

Saga Prefectural Library Database

堤貞郷書状

Saga Prefectual Library

Saga Prefectural Library Database

書状（神代領の境論）

Fukuoka City Museum

Fukuoka City Museum Collection Database

伊勢貞長書状

Kyushu National Museum

Integrated Collections Database of the National Museums, Japan

長崎貞義書状

ADEAC: A System of Digitalization and Exhibition for Archive Collections

広瀬家貞書状

史料編纂所

ADEAC: A System of Digitalization and Exhibition for Archive Collections

鍋島貞村書状

Saga Prefectual Library

Saga Prefectural Library Database

（佐野盛貞書状）

Keio University Media Center

Keio Object Hub

[松永貞徳書状]

Kyoto University Museum

IIIF Discovery in Japan

伊勢貞昌書状

Kyushu National Museum

Integrated Collections Database of the National Museums, Japan

伊勢貞成書状

ADEAC: A System of Digitalization and Exhibition for Archive Collections

薬丸兼貞書状

ADEAC: A System of Digitalization and Exhibition for Archive Collections

本田親貞書状

ADEAC: A System of Digitalization and Exhibition for Archive Collections

魚返鎮貞書状

史料編纂所

ADEAC: A System of Digitalization and Exhibition for Archive Collections

稲葉貞通書状

史料編纂所

ADEAC: A System of Digitalization and Exhibition for Archive Collections

（岡部貞起書状）

Digital Archive Fukui

Digital Archive Fukui

長崎貞義書状

ADEAC: A System of Digitalization and Exhibition for Archive Collections

書状　中村利貞→

Nagano Prefectural Library

信州デジタルコモンズ長野図書館所蔵資料

三浦貞広書状

Fukuoka City Museum

Fukuoka City Museum Collection Database