Mieszko II Lambert
It was breached several times by the Slavic Obotrites (983 and 1086) and Mieszko II Lambert of Poland (1028 and 1030). The Limes was dissolved during the first phase of the Ostsiedlung, when Count Henry of Badewide campaigned in Wagrian lands in 1138/39 and the Slavic population was Germanized by German, mostly Saxon, settlers.