This unnamed vampire nest consisted of six members and was wiped out by Dean Winchester.
At some unknown point in time, this vampire nest formed and ended up consisting of six members. This vampire nest drew the attention of hunter Dean Winchester who would hunt the nest down solo. Dean somehow tracked the nest down. Upon arriving at their location, Dean managed to kill every member single-handedly. Sam later arrives and argues with Dean over him hunting the nest down solo. Dean counters that he did it to feed the Mark of Cain and didn't want to see Sam's worried look. Dean also comments that him killing the six vampires is his personal best record.