- Died: 1569
- Title: Saemon
Motozumi was the son of Katsura Hirozumi (d. 1523). He became an important retainer of Motonari and was entrusted with Sakurao castle as well as with spreading disinformation during the movements leading up to the Battle of Miyajima in 1555. He was initially married to the daughter of Môri retainer Fukubara Hirotoshi but later took as wife the daughter of Shiji Hiroyoshi. He was succeeded by his son Hirozumi. The Katsura were related to the Môri but were briefly disgraced when Katsura Hirozumi had been compelled to commit suicide on suspicion of treason in 1524.
- Initial text from Samurai-Archives.com FWSeal & CEWest, 2005