He was referred to as Saburo Jiju (chamberlain) Hidenobu Ason (the second highest of the eight hereditary titles) in "Imperial Visit to Jurakudai" (Hideyoshi's residence and office in Kyoto) stating the Jurakudai visit of Emperor Goyozei in April.
4月の後陽成天皇の聚楽第行幸を記した『聚楽亭行幸記』には、三郎侍従秀信朝臣の名が見える。