His first son, Tadaoki (Sansai) HOSOKAWA took uijin (first battle) in the attack of Saiga of Ki Province, and did splendid service as busho (commanding officer) of Nobunaga.
長男の細川忠興（三斎）は、紀伊国雑賀攻めで初陣し、信長の部将として活躍。