One battle in this conflict took its name from a mobile flagpole-bearing cart that marked the center of the line of William  of Aumale. In one battle during this conflict, a ruler was surrounded by Angevin knights before being taken prisoner by  William Kahmenes. This conflict, during which David I of Scotland invaded England in the Battle of the Standard,  culminated with the king's capture at Lincoln and the subsequent treaty of (*) Wallingford, which eventually led to
One battle in this conflict took its name from a mobile flagpole-bearing cart that marked the center of the line of William  of Aumale. In one battle during this conflict, a ruler was surrounded by Angevin knights before being taken prisoner by  William Kahmenes. This conflict, during which David I of Scotland invaded England in the Battle of the Standard,  culminated with the king's capture at Lincoln and the subsequent treaty of (*) Wallingford, which eventually led to the  accession of a royal nicknamed "Curtmantle." This conflict began a few years after William Adelin, the heir apparent to Henry I,  died in the White Ship disaster. For 10 points, name this conflict in mid- 1100s England and Normandy, in which the forces of Matilda of Flanders and Stephen of Blois duked it out, leading to the formation of the House of Plantagenet.
One battle in this conflict took its name from a mobile flagpole-bearing cart that marked the center of the line of William  of Aumale.