Gulielma / Wilhelmina / Guglielma / Guillemette

Gulielma is a Latinized feminine form of the Germanic name Wilhelm, which is composed of the elements 'wil' (will, desire) and 'helm' (helmet, protection). While the masculine form William became extremely popular in English-speaking countries after the Norman Conquest, its feminine counterparts, especially Gulielma, remained less common. It was primarily used in academic or formal contexts, or among families who preferred more classical or Latinate names.

The name saw some usage in England, particularly during the 17th and 18th centuries, often within Quaker communities. Its distinctiveness and classical sound appealed to those seeking names with a strong historical or intellectual resonance. Despite its beautiful meaning and rich etymology, Gulielma never achieved widespread popularity and remains a rare and distinctive choice today.