If your characters are not Germanic and are instead Celtic, their women often had had even greater rights. Depending on the time period and country.
The reason it was called the Dark Ages (I've got no problem with that term) is that it was "Dark" to the Victorian historians. It happened between the written records left by the Romans and when written records started up again after Christian Missionaries arrived in Britian. So they didn't have much idea what had happened then.
In the 1060s, way after your time period, Jarl Harold Godwinsson, who later briefly became King Harold II, was married "in the Danish manner" to his wife Edith Swannesha (gentle swan). This was a legally recognized civil marriage and the children were legitimate; but it was not recognized by the church. Just an aside to give you another perspective.
(See how easy that was 1000 years ago? /digression into modern politics)