the valley to establish St. Urban's Abbey. Second generation Baron Ulrich died in 1212. He left several children, including a daughter, Anna (1197–1224) and two sons, Werner II (mentioned before 1212-1214) and Heinrich (first mentioned before 1212 and died after 1234). The existence of another son named Cuno is uncertain. Ulrich's daughter Anna is probably the wife of the knight Ulrich I (mentioned from before 1218 to before 1224) from the highly respected family of Grünenberg. The majority of the Langenstein descendants had already founded their own families, such as the Balm family, a generation before. Therefore, Anna became the primary heiress to the Langenstein lands. With her marriage to Ulrich of Grünenberg, she brought the Langenstein lands into the Grünenberg family. Anna died seven days after the death of her husband, but not before her and her sons made a large donation to the Abbey of St. Urban. During the second half of the 13th century, another member of the Langenstein family, Iddah of Langenstein and her husband Heinz of Luternau were involved in a bloody struggle for supremacy in the market town of Langenthal. The bloody conflict, which devastated the Abbey of St. Urban, had the descendants of Iddah and Heinz fighting against the main branch of Langenstein descendants, Heinrich II and Markwart I of Grünenberg. Coat of arms There are several different versions of the insignia of the Barons of Langenstein. One appears only in the 14th century and features a pacing red lion on a transversely divided blue-white field. In the Zurich Wappenrolle it is completely different; Argent, an eagle gules charged on its tail with a crown azure. Reichenau ministeriales The Barons of Langenstein are not to be confused with the Ministerialis (unfree knights in the service of a feudal overlord) family of Langenstein, who were in the service of Reichenau Abbey. This family consisted of Arnold I of Langenstein (mentioned 1271 and 1272) and his sons Hugo the Younger (mentioned before 1271 and after 1298), Berthold, Arnold and Frederick II. In 1271, they granted the island of Mainau, which they were holding as a fief for the Abbey, to the Teutonic Order. In 1272, the Order established a Commandry and allowed Hugo and another of his brothers to live there. Hugo was a Middle High German poet and he wrote an extensive poem about the life and martyrdom of Martina of Rome. This family