The Berthold-Bezelins (German: Berthold/Bezeline) were a German noble family from the 10th century, whose sphere of influence and property laid about the Trechirgau and Maifeldgau.
They were the Counts of Stromberg before that county became a part of the Electorate of the Palatinate.
The family is named after the prevailing first name Berthold, and its variation Bezelin.
The Berthold-Bezelins supposedly descended from the Ernestiner (Counts of Sualafeld) and through them from the Luitpoldinger Dukes of Bavaria as a junior lineage.
The reconstructed genealogy by D. C. Jackman reads Jackman cites Berthold of Ham (d. 1101), advocate of Prüm and documented with the Vianden cognomen, as a probable scion of this family and founder of the House of Vianden, a Sponheim branch.