- Birth: 1570
- Death: 1640
- Distinction: Toyotomi retainer, then Tokugawa retainer
- Title: Genba no Jô
- Sons: Arima Tadayori
Toyouji was a son of Arima Noriyori. He first served the Watarase until they were implicated in the Toyotomi Hidetsugu scandal (1595). He joined Tokugawa Ieyasu after the death of Toyotomi Hideyoshi (1598) and commanded 900 men for him at the Battle of Sekigahara (1600). He fought ferociously at the Seiges of Osaka Castle (1614; 1615) and is reported to have personally taken 57 heads. He was afterwards awarded at 210,000-koku fief in Hyûga (Kurume) and led troops against the Shimabara Rebellion (1637-38).
- Initial text from Sengoku Biographical Dictionary (Samurai-Archives.com) FWSeal & CEWest, 2005