Mahabharata 8.4.78
सुचित्रश्चित्रधर्मा च पितापुत्रौ महारथौप्रचरन्तौ महावीर्यौ द्रोणेन निहतौ रणे
sucitraścitradharmā ca pitāputrau mahārathaupracarantau mahāvīryau droṇena nihatau raṇe
Our plain-language meaning of this verse is waiting for scholar review.