Adjudication cases regarding the division of an estate are subject to the jurisdiction of the family court which has jurisdiction over the place where the inheritance process has commenced.
遺産の分割に関する審判事件は、相続が開始した地を管轄する家庭裁判所の管轄に属する。
Notwithstanding the provisions of the preceding paragraph, where an adjudication case for the division of an estate (meaning an adjudication case regarding the matters set forth in Appended Table 2, row (12); the same applies hereinafter) is pending before a court, an adjudication case for a disposition to determine an heir's amount of contribution (meaning an adjudication case regarding the matters set forth in Appended Table 2, row (14); the same applies in the following Article) is subject to the jurisdiction of the court before which the adjudication case for the division of an estate is pending.
定義第百九十一条第二項
別表第二の十二の項の事項についての審判事件
わかりやすく言うと
遺産の分割の審判をする事件のことです（別表第二の十二の項）。遺産の分割について共同相続人の間で協議が調わないときや協議ができないとき、各共同相続人が家庭裁判所に分割を請求するものです（民法第九百七条第二項）。