Liutgard of Mecklenburg
Liutgard of Mecklenburg (c. 1289–1352) was the only child of John III, lord of Mecklenburg, who drowned off Poel in 1289, and Helena of Rügen. In 1302 she married Count Gerhard II of Hoya, a childless union; Gerhard died in 1312 or 1313.
In 1312 she married Count Adolf of Holstein-Kiel, again without issue, and in 1315 Adolf was slain in his bed at the Siegesburg in Segeberg by his castellan Hartwig Reventlow. Liutgard died in 1352.