Stephen I, Count of Sancerre

Stephen I (1133–1190/1191), third son of Count Theobald II of Champagne, received the new County of Sancerre in 1151 and founded the House of Sancerre. He granted its merchants the Customs of Lorris in 1155 and built a stone citadel.

In 1170 he went to Jerusalem as a proposed husband for King Amalric's daughter Sibylla, before refusing the marriage and returning home. He led the baronial revolt against Philip II in 1181–1185, and in 1184 the king defeated him.

He freed his serfs in 1190. He joined the Third Crusade and died at the Siege of Acre, succeeded by his son William I.