Mechtild Von+ Tubingen 
Mechtild Von+'s father was Rudolf II Von+ Tubingen and her mother is Nm Von+ Ronsberg. Her paternal grandfather was Rudolf I Von+ Tubingen and her paternal grandmother is Mechtild Von+ Giessen. She had a brother named Rudolf III Der Scherer Von.General Notes
SOURCES: LDS FHL Ancestal File # (familysearch.org)
"Ancestors/Descendants of Royal Lines" (Contributors: Manuel Abranches de Soveral, Reynaud de Paysac, F.L. J P de Palmas <Aurejac et Tournemire; Frankish line>, Jacquier <Genealogy of Lewis Carroll, Justin Swanstrom, The Royal Families of England Scotland & Wales by Burkes Peerage; Debrett's Peerage & Baronage; Table of descendants French Canadian Genealogical Society; Families of Monfort-sur-Risle & Bertrand de Bricquebec; The Dukes of Normandy, XXXXI, Paul Leportier, Claude Barret>, H.R. Moser <Burke Peerage>, L. Orlandini, O.Guionneau, L.B. de Rouge, E. Polti, A.Terlinden <Genealogy of the existing British Peerage, 1842>, L. Gustavsson, C. Cheneaux, E. Lodge, S. Bontron <Brian Tompsett>, R. Dewkinandan, H. de la Villarmois, C. Donadello; Scevole de Livonniere, H. de la Villarmois, I. Flatmoen, P. Ract Madoux <History of Morhange; Leon Maujean; Annuaire de Lorraine, 1926>)... http://geneastar.org.
They had three sons and a daughter, named Albert II Von+, Burchard IV Von, Ulrich Von and Gertrude Von+.
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Children
Albert II Von+ Hohenberg
Albert II Von+ was born before 1254. He died due to being killed. on April 17th, 1298 in Oberndorf.