finding was that a similar dispute had occurred between Corias and Suero's brother Gutierre during the reign of Alfonso VI, and that the king had ruled the monks owed no portazgo (tolls on cartage) within the tenencia of Laciana. Suero therefore renounced his right to the toll. In 1132 Suero again judged a lawsuits involving Corias. Military activities In the fall of 1124 Suero took part in the reconquest of Sigüenza. By 11 November he was with the royal court at Segovia and by 30 November it had moved to Toledo in preparation. The subsequent path of the campaign is unknown, but Sigüenza had fallen by the last week of January 1125. In 1133 Alfonso VII led a military expedition into the Asturias to reduce the rebel Gonzalo Peláez, who four years earlier had been sent on a diplomatic mission with Suero. Unsuccessful in the short run, Alfonso left the campaign under the aegis of Suero Vermúdez and Suero's nephew Pedro Alfonso. Suero had probably taken part in a similar expedition against Gonzalo the previous year, and was absent from court for most of 1132–34 despite the usual frequency of his visits. Operations against Gonzalo continued this way for two years before he and Alfonso came to terms by May 1135. Part of the terms of the peace—which appear to have been negotiated by Suero, Pedro, and Bishop Arias of León—were that Gonzalo would surrender the three castles in which he had held out for three years in return for receiving the lordship of Luna which had previously been held by Suero until at least 1131. The last contemporary charter which Suero subscribed is dated 25 June 1136 and contains no reference to any tenencias. As he died a little over two years later, it is probable that he was already too old and infirm to play a large part in public affairs. Suero is buried in the monastery of Cornellana, where his epitaph records the date of his death. He had no known descendants. He was succeeded in many of his tenencias (Tineo, Oviedo, Vadabia) by his nephew Pedro Alfonso. Notes Bibliography Simon Barton. The Aristocracy in Twelfth-century León and Castile. Cambridge: Cambridge University Press, 1997. Simon Barton. "From Tyrants to Soldiers of Christ: The Nobility of Twelfth-century León-Castile and the Struggle Against Islam." Nottingham Medieval Studies, 44 (2000). At De Re Militari. Miguel Calleja Puerta. El conde Suero