Henry Suso was a German mystic, born at Uberlingen on Lake Constance on 21 March c. 1300; he died at Ulm on 25 January 1366; declared Blessed in 1831 by Gregory XVI, who assigned his feast in the Dominican Order to 2 March. The Dominicans now celebrate his feast on 23 January, the feria, or "free" day, nearest the day of his death.