http://fmg.ac/Projects/MedLands/BAVARIAN%20NOBILITY.htm#HeinrichSch...

HEINRICH von Schweinfurt ([970/75]-18 Sep 1017, bur Schweinfurt). m (before 1003) GERBERGA [von Hammerstein], daughter of HERIBERT Pfalzgraf Graf im Kinziggau & his wife Imiza--- ([975/80]-after 1036). Markgraf Heinrich & his wife had [five] children:

a) OTTO von Schweinfurt (-28 Sep 1057, bur Schweinfurt). Graf an der unteren Altmühl 1014. Markgraf auf dem Nordgau 1024-1031. Graf an der unteren Naab 1034. Graf an der oberen Naab 1040. He succeeded in 1048 as OTTO Duke of Swabia.
b) EILIKA ([1000/05]-10 Dec after [1055/56]). m ([1020]%29 BERNHARD II Duke in Saxony, son of BERNHARD I Duke in Saxony [Billung] & his wife Hildegard von Stade (after 990-29 Jun 1059, bur Lüneburg St Michael).
c) JUDITH (-2 Aug 1058, bur [1061 or after] Prague St Veit). m [firstly] (after 1021) BŘETISLAW of Bohemia, illegitimate son of OLDRICH Duke of the Bohemians & his mistress --- (-Chrudim 10 Jan 1055, bur Prague St Veit). He succeeded in 1034 as BŘETISLAW I Duke of Bohemia. [m secondly ([1055]%29 as his second wife, PÉTER Orseolo King of Hungary, son of PIETRO OTTONE Orseolo Doge of Venice & his wife Maria [Grimelda] of Hungary ([Venice] [1010/15]- Székesfehérvár late 1046
d) BURKHARD (-18 Oct 1059). Chancellor of Emperor Konrad II. Bishop of Halberstadt 1036.]
e) HEINRICH (-after 1043).

http://fmg.ac/Projects/MedLands/BAVARIAN%20NOBILITY.htm#HeinrichSch...

Henry was born before 1017.

See http://www.e-familytree.net/F251/F251997.htm for more information,

speculative research of Rob Salzman (http://www.e-familytree.net/surnames.htm).

The Luitpoldings

One Luitpold, +846, had issue:

• A1. a son; m.N, a dau.of Rudolf Welf
  • B1. Luitpold/Leopold Markgraf von der Ostmark, Mkgf der Kärntner Mark, von Pannonien und der bayerischen Ostmark 895, +Pressburg 4.7.907; m.895/900 Kunigunde von Schwaben (*ca 879 +915), dau.of Berthold, Pfgf of Swabia
    • C1. Arnulf I, Herzog von Bayern (Duke of Bavaria) (907-937), *ca 898, +Regensburg 14.7.937; m.910/915 Judith of Friaul/von Sülichgau
      • ...
      • D7. Berthold I, Markgraf im bayerischen Nordgau, *915/926, +15.1./16.8.980; m.ca 949 Heilika, dau.of Gf Lothar von Walbeck
        • E1. Heinrich, Gf von Schweinfurt, *ca 975, +18.9.1017; m.before 1003 Gerberga von Gleiberg (*ca 970 +after 1017)
          • ...
          • F6. Heinrich I, Gf an der Pegnitz, Gf von Schweinfurt, *ca 992, +1043; m.N von Sualafeld/ Altdorf, dau.of Kuno I
            • G1. Heinrich II, Gf von Pegnitz und Weissinburg, +1080
            • G2. Kuno I, Gf von Lechsgemünd; m.Mathilde, dau.of Rudolf von Achalm; for their issue see HERE
            • G3. Otto I, Gf von Scheyern, Graf a.d. Paar 1045, Vogt von Freising 1047, +4.12.1072; 1m: Haziga von Diessen; 2m: N, dau.of Pfgf Hartwig II von Bayern; for their issue see HERE
            • G4. Friedrich, Gf zu Burg-Lengenfeld; m.Sigena von Laige