Sadayoshi貞吉

Hosho school · Yamato province · active 1317-1331

Hawley reference SAD854
Hawley
100
points — scale 15 (recorded) to 500+ (legendary)
Fujishiro
Sai-jo saku
supreme masterwork — the highest grade
Tōkō Taikan
¥10M
reference market valuation (Tokuno Kazuo, 1977)

Smith record

Active period1317-1331
ProvinceYamato
School / traditionHosho
TeacherSadamune
Hawley IDSAD854

Recorded signatures (mei)

大和國住人貞吉作yamato kuni junin sadayoshi saku
藤原貞吉作fujiwara sadayoshi saku
金吾藤原貞吉kingo fujiwara sadayoshi
保昌貞吉hosho sadayoshi
大和國高内郷住人藤原貞吉入西法獅作yamato kuni takachi gori junin fujiwara sadayoshi nyusai hoshi saku
大和國金吾藤原貞吉yamato kuni kingo fujiwara sadayoshi
大和國住人藤原貞吉yamato kuni kingo fujiwara sadayoshi
高内郷住人藤原貞吉takachi gori junin fujiwara sadayoshi
大和國高内郷住人左衛門尉貞吉yamato kuni takachi gori junin saemonnojo sadayoshi

Reading an inscription on a nakago? Try our mei reader and era converter.

About these ratings

Hawley points come from W. M. Hawley's Japanese Swordsmiths (1981), the standard Western reference cataloguing over 12,000 smiths. Most recorded smiths sit at 15–20 points; only a few dozen legendary masters exceed 150.

Fujishiro grades (from Nihon Tōkō Jiten) rank workmanship from Chū saku up to Sai-jō saku, while the Tōkō Taikan valuation (Tokuno, 1977) reflects each smith's relative market standing in yen. Explore more smiths in the searchable swordsmith index.

Own an authentic nihonto

Every blade in our collection is an original antique Japanese sword, sourced in Japan — including works in the Hosho tradition when available.

Browse swords for sale
← Swordsmith Index Era Converter Mei Reader Nagasa Converter