Matoryou Hime-tachi

マトリョー姫達

Episodes 882-884 The Matryo Princesses are the princesses of the Roshwan Kingdom. Their names, in order from largest to smallest, are Matryosaka (マトリョーサカ?), Matryosuka (マトリョースカ?), Matryoseka (マトリョーセカ?), and Matryosoka (マトリョーソカ?). (Source : One Piece Wiki)