Rowels probably originated in France or Spain in the 10th Century A.D., they are first recorded in Britain in Henry III's reign - two seals from 1240 depict the king - on one he wears prick spurs, and on the other rowelled.

In the following centuries spurs became associated with rank and chivalry. We speak of "earning one's spurs" - a disgraced knight would have his spurs and sword broken as part of his punishment. A knight would wear gold or gilt spurs and an esquire silver .
Through the fifteenth Century rowels became smaller and spur necks became longer. This was so that the spur could reach around the flanchards ( horse armour or barding ) The mediaeval horseman who rode with legs extended forwards also needed spurs with longer necks which could still reach their horse's sides. Over the following centuries, rowels changed shape and size, some developed "jingle-bobs". In seventeenth Century Germany spurs developed multiple necks and rowels, but these were probably for ceremonial or dress use only.

Georgian spur and ends