Yonezawa Domain
Toshiharu was the third son of Maeda Toshitsune, 2nd "daimyō" of Kaga Domain. On the retirement of his father in 1639, he was assigned a 70,000 "koku" estate centered in what is now Enuma District, Ishikawa. This marked the start of Daishōji Domain. Toshiharu was a noted master of the Japanese tea ceremony, having been a disciple of Kobori Enshū. While "daimyō", he developed gold and copper mines, and later established Kutani ware as a noted product of the domain. His wife was the daughter of Uesugi Sadakatsu of Yonezawa Domain.