The Livonian Brethren of the Sword
The crusade to retake the Iberian Peninsula from the Muslims was, on the other hand, an almost entirely Spanish and Portuguese affair. The military religious orders that sprang up to fight in that crusade, the longest war in history, were likewise Spanish. Perhaps the least talked about is the largely German-driven crusade against the pagans of northeastern Europe on the shores of the Baltic Sea. Those who do know about this arduous and bitterly fought struggle will likely recall the Order of the Teutonic Knights (ancestor of the later Kingdom of Prussia and originator of the oldest families of the Prussian nobility, more about them here) but less well known was another German military religious order known the Livonian Brethren of the Sword. They should not be forgotten.
This was, practically speaking, the end of the Livonian Brethren of the Sword. They would never be an independent military religious order again. However, those who survived the ordeal carried on, faithful to their vows, and were absorbed into the Teutonic Knights, retaining their traditions and leaders. As a branch of the Teutonic Knights they were known as the Livonian Order and still had their own Master though he was subject to the Teutonic Grand Master. Thirty years of fighting by the Sword Brethren had been brought to ruin by their defeat at Saule, however, as the autonomous Livonian Order within the Teutonic Knights, they reconquered Courland, Livonia and Semigallia, eventually buying the Duchy of Estonia from King Valdemar IV of Denmark after a devastating loss north of Riga at the hands of the Lithuanians, including, again, the death of their Master Bruno in 1298. As a result, two groups emerged and, due to their autonomy, they survived the secularization of the Teutonic Knights by Albert of Brandenburg fallowing his adoption of Lutheranism in 1525.