牝系ツリーβ(今のところサーバー負荷を考えて4代までの簡易版)

Gratuity [1923]
|
 | |―Patroness [1927]
 |   |―Baby Sister [1937]
 |     |―Benign [1943]
 |       |―Sea Gate [1961]
 |         |―Smooth Passage [1976]
 |           |―Wonchindordor [1986]