John Horace Round and Walter Alison Phillips, 1911 Encyclopædia Britannica (1910)
“ The style Freiherr (liber dominus) implied originally a dynastic status, and many Freiherren held countships without taking the title of count. When the more important of them styled themselves counts, the Freiherren sank into an inferior class of nobility. The practice of conferring the title Freiherr by imperial letters was begun in the 16th century by Charles V., was assumed on the ground of special imperial concessions by many of the princes of the Empire, and is now exercised by all the German sovereigns. ”
