By the way, it has been argued for a long time whether the Great Mandala, the Issonsisi or the Ittoryosonsisi should be the honzon of the Nichiren sect.
ちなみに大曼荼羅・一尊四士・一塔両尊四士のいずれを日蓮宗の本尊と見なすかについては古来議論がある。