He also had the habit of assigning the Gamo surname to meritorious vassals; it was best to have fewer family members with the same name, but he mass produced them, earning the rebuke of Toshiie MAEDA.
奇癖として有功の家臣に蒲生姓を乱発し、家中に稀少なるべき同名衆を大量生産することがあり、前田利家にたしなめられている。