User blog comment:B214/Question & Answers 5/@comment-66.87.82.159-20150913025728/@comment-1359322-20150913160310

They don't get a new set period. For example if Ise dies, then Rias won't get another 8 Pawn Pieces, so it means she instantly make her lose 8 Pawns. If she loses all her servants, then that's the end of it, she'll be a servantless King.