Soon they were joined by many of their wealthier countrymen who had come to fight for the Holy Land. Presently they "banded themselves together, after the pattern of the Order of St. John of Jerusalem, and united the care of the sick and poor with the profession of arms in their defence, under the title of Hospitalers of the Blessed Virgin." These Teutonic Hospitalers continued their work, in hospital and field, until the capture of Jerusalem by Saladin in 1187, and the conqueror, in recognition of their benevolent services, consented that some of them should remain there and continue their work. Out of these lowly beginnings grew one of the most powerful and widespread of the military religious orders.
It was during the siege of Acre, 1189-1191, that the Teutonic Order received its final and complete organization as one of the great military religious orders of Europe. The German soldiers suffered great miseries from sickness and from their wounds, and as their language was not understood by the French and other European contingents of the crusading army, they were left untended and friendless. To meet this want, some citizens of Bremen and Lubeck provided a sort of field hospital, and devoted themselves to the care of their wounded and sick countrymen. These were soon joined by others, and by the brethren of the Hospital of the Blessed Virgin at Jerusalem, whom Saladin had banished from the city, and the little body came to be known by the designation of the Teutonic Knights of the Hospital of the Blessed Virgin at Jerusalem.
It is said that the order owed its constitution to Frederick, Duke of Swabia; but there is much obscurity, and little authentic record to determine this or to furnish particulars of the transaction.
The order seems, however, to have been confirmed by Pope Celestine III, the constitution and rules of the Templars and Hospitalers being taken as the model for the new order, Henry de Walpot being the first master. This appears to have happened about 1190, though some authorities maintain that it was not till 1191 or even later. While, therefore, the three great orders had much in common, there was this difference in their original foundation. The Hospitalers were at first a nursing order, and gradually became military; the Templars were always purely and solely military; while the Teutonic Knights were from the first both military and nursing.
Contemporary chroniclers compare the Teutonic Knights with the mystic living creature seen by Ezekiel, having the faces of a man and of a lion, the former indicating the charity with which they tended the sick; the latter, the courage and daring with which they met and fought the enemies of Christ.
The Teutonic Knights continued their care of the sick soldiers till Acre was taken in July, 1191, by the united forces of Philip Augustus, King of France, and Richard Coeur de Lion, King of England. After the capture of Acre by the Christian army, Henry de Walpot purchased a site within the city, and built a church and hospital for his order, the first that it possessed. To these buildings were gradually added lodgings for the members of the order, for pilgrims, and for the soldiers which were enlisted to assist the knights in the field.
All this cost a large sum of money; but, as many wealthy Germans had enrolled themselves as knights, means were not wanting as the occasion for them occurred and the requirements of the order developed. Among the greatest of the earlier benefactors was Frederick, Duke of Swabia, who contributed money and aided the progress of the order by his influence, and, when he died at Acre, was interred in the church of the knights. Contemporary writers speak in the highest terms of his virtues, saying that he lived a hero and died a saint.
At this period and for the rest of its history, the constitution of the Teutonic order embraced two classes of members—the knights and the clergy—both being exclusively of German birth. The knights were required to be of noble family, and, besides the ordinary threefold monastic vows, took a fourth vow, that they would devote themselves to the care of the sick and to fight the enemies of the faith. Their dress was black, over which a white cloak with a black cross upon the left shoulder was worn. The clergy were not necessarily of noble birth, their duties being to minister to the order in their churches, to the sick in the hospitals and on the field of battle.
To these two classes, who constituted the order, were added serving brethren, called Heimlike and Soldner, and in Latin, Familiares. Many of these gave their services gratuitously from religious motives; others received payment and were really servants. The knights selected their esquires from among the serving brothers. All these wore a dress of the same color as the knights, that they might be known at once to belong to the order.
The original rules of the order were very severe. All the members lived in common; they slept in dormitories on small and hard beds; they took their meals together in the refectory, and their fare was meagre and of the plainest quality. They were required to attend the daily services in the church, and to recite certain prayers and offices privately. They were not permitted to leave their convent, nor to write or receive letters, without permission of their superior. Their clothes, armor, and the harness of their horses were all of the plainest description; all gold, jewels, and other costly ornaments being strictly forbidden. Arms of the best temper and horses of good breed were provided. When they marched to battle, each knight had three or four horses, and an esquire carried his shield and lance.