The Anglo-Saxons did not conquer Britain as one group; instead, they were made up of three separate Germanic tribes called the Angles, the Saxons, and the Jutes.
We've found some jute rope that we thought would do well for this and are going to simply steep it with some boiling water, letting it sit there for a while.
The Germanic tribes settled in seven smaller kingdoms, known as the Heptarchy: the Saxons in Essex, Wessex and Sussex; the Angles in East Anglia, Mercia and Northumbria; and the Jutes in Kent.