Nielsen Hayden genealogy
Ancestors of Floris III of Holland
Abt 1140 - 1190 (~ 50 years)
┌── Dirk III of Friesland 
(Between 981 and 989 -
│ 27 May 1039 bur.Egmond Abbey, Bergen, North Holland) =>
(Between 981 and 989 -│ 27 May 1039 bur.Egmond Abbey, Bergen, North Holland) =>
┌── Floris I of Holland (Abt 1017 Vlaardingen, Zuid-Holland, Netherlands -
│ 28 Jun 1061 Gelderland, Netherlands)(m. Abt 1050)
(Abt 1017 Vlaardingen, Zuid-Holland, Netherlands -│ 28 Jun 1061 Gelderland, Netherlands)(m. Abt 1050)
│ └── Othelindis of Nordmark ( - 31 Mar 1044 Saxony) =>
( - 31 Mar 1044 Saxony) => │
┌── Dirk V of Holland (Abt 1053 - 17 Jan 1091)(m. Bef 26 Jul 1083)
(Abt 1053 - 17 Jan 1091)(m. Bef 26 Jul 1083) │ │
│ │ ┌── Bernard II (Abt 995 - 29 Jun 1059)(m. Abt 1020) =>
(Abt 995 - 29 Jun 1059)(m. Abt 1020) => │ └── Gertrude of Saxony (Abt 1030 - 4 Aug 1113)(m. Abt 1050)
(Abt 1030 - 4 Aug 1113)(m. Abt 1050) │ └── Eilika of Schweinfurt (Abt 1004 - Aft 1055)(m. Abt 1020) =>
(Abt 1004 - Aft 1055)(m. Abt 1020) => │
┌── Floris II "the Fat" of Holland ( - 2 Mar 1121)
( - 2 Mar 1121) │ └── Othelhildis (m. Bef 26 Jul 1083)
(m. Bef 26 Jul 1083) │
┌── Dirk VI of Holland (Abt 1114 - 5 Aug 1157)
(Abt 1114 - 5 Aug 1157) │ │
│ │ ┌── Gerard of Lorraine (Abt 1008 - 4 Apr 1070 Remiremont, Vosges, France)
(Abt 1008 - 4 Apr 1070 Remiremont, Vosges, France) │ │ │ └── Gisela
│ │ │
│ │ ┌── Thierri II of Lorraine ( - 1115)
( - 1115) │ │ │ │
│ │ │ │ ┌── Albert II of Namur (Abt 1000 - 1064) =>
(Abt 1000 - 1064) => │ │ │ └── Hedwig of Namur (of Namur, Belgium - Between 1075 and 1080)
(of Namur, Belgium - Between 1075 and 1080) │ │ │ └── Regelindis of Lower Lorraine ( - 1064) =>
( - 1064) => │ │ │
│ └── Petronella de Lorraine ( - 24 May 1144)
( - 24 May 1144) │ │
│ │ ┌── Tiemo of Formbach ( - Abt 7 Mar 1050) =>
( - Abt 7 Mar 1050) => │ │ ┌── Frederick of Formbach (Abt 1020 - Abt 1060)
(Abt 1020 - Abt 1060) │ └── Hedwig of Formbach ( - Between 1085 and 1090)
( - Between 1085 and 1090) │ │
│ │ ┌── Conrad von Haldensleben =>
=> │ └── Gertrude von Haldensleben ( - 21 Feb 1116)
( - 21 Feb 1116) │
Floris III of Holland (Abt 1140 - 1 Aug 1190 Antioch, Anatolia)
│
│ ┌── Frederick I of Luxembourg (965 - 6 Oct 1019)(m. Bef 995) =>
(965 - 6 Oct 1019)(m. Bef 995) => │ ┌── Giselbert of Luxembourg (Abt 1007 - 14 Aug 1059)
(Abt 1007 - 14 Aug 1059) │ │ └── (Unknown daughter of Heribert I) (m. Bef 995) =>
(m. Bef 995) => │ │
│ ┌── Hermann of Salm, Emperor-Elect (Abt 1035 - 28 Sep 1088 Metz, Moselle, Lorraine, France)
(Abt 1035 - 28 Sep 1088 Metz, Moselle, Lorraine, France) │ ┌── Otto I von Rheinick (Abt 1058 - 1150)
(Abt 1058 - 1150) │ │ └── Sophie
│ │
└── Sophia von Rheinick ( - 26 Sep 1176)
( - 26 Sep 1176) │
│ ┌── Benno von Northeim ( - Between 1047 and 1049) =>
( - Between 1047 and 1049) => │ ┌── Otto I von Northeim (Abt 1025 -
│ │ 11 Jan 1083 bur.Nicolai Chapel, Northeim, Lower Saxony, Germany)
(Abt 1025 -│ │ 11 Jan 1083 bur.Nicolai Chapel, Northeim, Lower Saxony, Germany)
│ ┌── Heinrich von Northeim (Abt 1051 - Bef 10 Apr 1101)
(Abt 1051 - Bef 10 Apr 1101) │ │ └── Richenza ( - Bef 11 Jan 1083)
( - Bef 11 Jan 1083) │ │
└── Gertrude von Northeim ( - Bef 1165)
( - Bef 1165) │
│ ┌── Liudolf of Brunswick ( - 23 Apr 1038) =>
( - 23 Apr 1038) => │ ┌── Ekbert I of Brunswick (Abt 1036 - 11 Jan 1068)(m. 1058)
(Abt 1036 - 11 Jan 1068)(m. 1058) │ │ └── Gertrude of Egisheim ( - 21 Jul 1077) =>
( - 21 Jul 1077) => │ │
└── Gertrude von Meissen (Abt 1060 - 9 Dec 1117)
(Abt 1060 - 9 Dec 1117) │
│ ┌── Olderich II Manfredo (992 - 29 Oct 1034 Turin, Torino, Piedmont, Italy)
(992 - 29 Oct 1034 Turin, Torino, Piedmont, Italy) │ │ (m. Bef 1014) =>
└── Irmingard de Susa ( - 28 Jan 1078)(m. 1058)
( - 28 Jan 1078)(m. 1058) └── Berta of Este ( - 1029)(m. Bef 1014) =>
( - 1029)(m. Bef 1014) =>