Frederick I, or Ferry I[1] of Lorraine (9 January 1369[citation needed] – October 25, 1415 in the Battle of Agincourt[2]) was a Count of Vaudémont.

[1] He was the son of Duke John I of Lorraine (1346-1390) and Sophie of Württemberg (1343-1369).

[citation needed] In 1394, Frederick married Margaret, the heiress of Vaudémont and Joinville, and became Count of these lands in her right.

His children were:[6] Dynastic problems in the senior line caused his great-grandson René of Vaudémont to become Duke of Lorraine as René II in 1473.

This biographical article of a European noble is a stub.