Which Royal Navy family formed the longest admiral dynasty?

What was the longest-running admiral dynasty in the Royal Navy?

Possibly the Somerville-Hood family, though the answer is uncertain because multiple branches and marriages complicate the lineage.

Naval dynasties can run through several branches and through marriage, making a single longest line difficult to define. The question also depends on whether service through an allied surname counts as continuation of the same family. Offered from memory, the tentative answer suggests the Somerville-Hood family as a possible continuing example. The identification remains uncertain rather than a settled genealogical result.