According to the old tradition, Derrick of Alsace, Count of
Flanders, brought the relic of the Holy Blood with him after
the second crusade, having received it in the Holy Land (1150).
Because of his exceptional heroism during this crusade, Derrick
received this relic, with the approval of the patriarch of Jerusalem,
from the hands of his brother-in-law, Baldwin III of Anjou,
King of Jerusalem.
Arriving
in Bruges on april 7th 1150, Count Derrick, accompanied by his
wife Sybilla of Anjou and Leonius, abbot of Saint Bertin's abbey
of Saint Omar, brought the relic to the Basilius chapel on the
Burg, a chapel which he himself had built.
Arriving
in Bruges on april 7th 1150, Count Derrick, accompanied by his
wife Sybilla of Anjou and Leonius, abbot of Saint Bertin's abbey
of Saint Omar, brought the relic to the Basilius chapel on the
Burg, a chapel which he himself had built. 
