Reginar Longneck

Reginar Longneck
Bornc. 850
Diedc. 915
Noble familyHouse of Reginar
Spouse(s)Hersinda
Alberada
IssueGilbert, Duke of Lorraine
Reginar II, Count of Hainaut
Frederick, Archbishop of Mainz
Fatherprobably Giselbertus
MotherUnknown

Reginar Longneck or Reginar I (c. 850–915), Latin: Rainerus or Ragenerus Longicollus, was a leading nobleman in the kingdom of Lotharingia, variously described in contemporary sources with the titles of count, margrave, missus dominicus and duke. He stands at the head of a Lotharingian dynasty known to modern scholarship as the Reginarids, because of their frequent use of the name "Reginar".