Looks correct. Second and third are definitely Bertram. This is how I have cataloged one of my examples:
France,
Provincial. Lorraine, Diocese of
Metz. Bertram,
Bishop, AD 1179-1212. AR Denier (15mm, 0.72g, 10h).
Metz mint. Obv: BERTR-ANN; Praying
Bishop, half-length, standing left in profile. Rev: ME-TE-NS-IS;
Cross with blessing hand.
Ref:
Roberts 8858; Boud 1625.
Roberts lists coins with apparently the same
reverse for Conrad of Scharfeneck (8859) and John of Apremont (8860). Can't really tell if the
portrait side of the first coin reads Bertrann, Conradvs or Iohannes.
Eugene