ADALBERT (c. 700), English saint, possibly a grandson of Oswald, king of Deira, was sent with St. Willibrord on a mission to the Frisians, and is said to have been the first archdeacon of Utrecht. In about 702 he went to preach in north Holland, where he built a church at Egmont. He is supposed to have died in 705, on June 25, and until the early 18th century that day was still kept sacred to his memory, as patron saint, in the village of Eg mont. A life of Adalbert was compiled in the loth century, by some monks in the diocese of Treves, and one by a monk at Eg mont in the 12th century.