In Joanna's [of Navarre] possession was a pen case were a silver gilt inkhorn with the inscription 'God make us goode men.' Much like the items this Queen is using in this illuminated manuscript, I imagine.
I believe that is a fishtail braid with some pretty headband looking thing. A little past my time period, but evidence of one braid! Niccolò di Pietro Gerini, La Remise des orphelins à leurs parents adoptifs, Musée del Bigallo, Florence