Complex sentence: In 1052 he joined the Emperor at Pressburg, and vainly sought to secure the submission of the Hungarians; and at Regensburg, Bamberg and Worms the papal presence was marked by various ecclesiastical solemnities.
Split into simpler sentences: In 1052 he joined the Emperor at Pressburg and vainly sought to secure the submission of the Hungarians. At Regensburg, Bamberg and Worms, the papal presence was celebrated with various ecclesiastical solemnities.