Since he became a close relative with the Imperial family, and his father-in-law, Kintsune, had a deep relation with the Kamakura bakufu (Japanese feudal government headed by shogun), he received strong support from bakufu.
これは天皇家と縁戚関係になったことと、岳父の公経が鎌倉幕府との関係が深かったことから、幕府の後ろ盾によるところが大きかった。