In 1599 he was given a 215,000 "koku" fief in Noto province after his father's death. He sided with Western army, supported Ishida Mitsunari during the Sekigahara Campaign and had evidently plotted to assassinate Tokugawa Ieyasu beforehand. His brother Maeda Toshinaga sided with Eastern army of Tokugawa Ieyasu. Due to the crisis between the Maeda family, his mother Maeda Matsu went to Edo voluntarily as hostage to prevent the decline of the Maeda clan.