I think this should be Suda Mitsuchika. In Sanada Family Materials there is a photo of a letter from "須田相模守満親" mentioning Yukimura's coming and the sending of troops to aid the Sanada's. Also, googling on 須田満親 gets articles that say he died in 1598 and had a son Nagayoshi.
- Ok, I'll look into it with what I have here and fix it. Thanks for catching it. --Kitsuno 20:37, 19 November 2006 (PST)