Complex sentence: Until recently, it was believed that Menkheperraseneb was the owner of two tombs, TT86 and TT112, but Egyptologist Peter Dorman was able to show geneaological discrepancies within the family trees around Menkheperraseneb.
Split into simpler sentences: Until recently, it was believed that Menkheperraseneb was interred in a twin-tomb, TT86 and TT112. But Egyptologist Peter Dorman was able to show geneaological discrepancies within the family trees around Menkheperraseneb.