Vesna is also found in its Plural form. Vesnas dwelled in beautiful mountaintop palaces, where the crops, human destiny and other issues were discussed. Their palaces were surrounded by a large circle preventing them from leaving the palace during the year, except in February (which is why this month is also known as “vesnar” in the Slovenian) when they would go down to the valleys.
Vesna is one of three Slovenian words for the spring. Speaking with friends it seems that she is the most remembered Goddess of the Slovenian pantheon.
Wikipedia also lists Vesna as having a male Companion, Vesnik. Up until now, I haven’t been able to find any other reference to him, either through friends or through the internet. It does provide delightful images to the mind though, and ties the story to those of Britain.