At the entrance into Kyoto for Enryaku-ji Temple forcible appeal (forcible appeal in the Kao era) in 1169, Shigesada made the best effort with his relatives to protect the Shumei-mon gate of the Imperial Palace precinct.
嘉応元年（1169年）の延暦寺強訴入京（嘉応の強訴）に際しては、郎党を率いて内裏の修明門を死守した。