Edward Cuthbert Butler,
1911 Encyclopædia Britannica, Volume 27…
(1911)
“ The ordinary method of freeing captives was by paying their ransom and for this purpose vast sums of money were collected by the Trinitarians; but they were called upon, if other means failed, to offer themselves in exchange for Christian captives. Many thousands were liberated by their efforts. In the 17th century a reform called the Barefooted Trinitarians was initiated, which became a distinct order and is the only one that survives. ”
