The House of Mecklenburg-Schwerin is a German noble family that originated in the region of Mecklenburg. Established in the 12th century, it played a significant role in the history of northern Germany, particularly during the Middle Ages and the early modern period. The family produced several dukes and grand dukes, influencing the political landscape of the region. Throughout its history, the house has been linked to various European royal families through marriage. The last reigning duke was Friedrich Franz IV, who ruled until 1918, when the monarchy was abolished following World War I. Today, the family remains active in cultural and charitable endeavors.