What is "alfena"

Alfena is a Portuguese city and parish in the municipality of Valongo, Portugal. The population in 2011 was 15,211, in an area of 11.11 km².

The gens Alfena or Alfenia was a Roman family, known from the first century BC to the first century AD. The gens is known chiefly from three individuals, one of whom attained the consulship. They all shared the cognomen Varus, and may have been closely related.