Such a move became more prominent during the Kamakura period and lawsuits over the right of kanno between shoen owners and local landlords occurred frequently during the middle of the Kamakura period.
こうした動きは、鎌倉時代になると一層顕著となり、鎌倉中期には荘園領主と在地領主との間で勧農権をめぐる相論（訴訟）が頻発するようになる。