Cid Kramer is the headmaster of Balamb Garden. After the failed assassination attempt on Edea, the Garden Master, NORG, attempts to seize power from Cid and reconcile with Edea. This sparks an internal conflict, in which the students and personnel side with either Cid or NORG. However, Squall and Xu quell the conflict and return Cid to power. Afterward, Cid aggressively confronts NORG, who started the conflict over financial issues. Cid is the husband of Sorceress Edea, with whom he ran an orphanage and founded the SeeD organization. They are estranged for most of the game, however, because they lead opposing factions until Ultimecia releases her magical possession of Edea.
Source: Wikipedia, "[en.wikipedia.org/wiki/Characters_of_Final_Fantasy_VIII%23Cid_Kramer Characters of Final Fantasy VIII]", available under the CC-BY-SA License.