Otto II, Count of Guelders
Otto II, Count of Guelders (Dutch: Otto II, Graaf van Gelre) was a nobleman from the 13th century. He was the son of Gerard III, Count of Guelders and Margaretha of Brabant.
After Count William II (1227–1256) was slain in 1256 by Frisians his two-year-old son Floris V, Count of Holland inherited Holland. His uncle (Floris de Voogd regent from 1256 to 1258), and later his aunt (Adelaide of Holland regent from 1258 to 1263) fought over custody of Holland with other nobles. At the battle of Reimerswaal on 22 January 1263, Count Otto II defeated Aleidis and was chosen regent by the nobles who opposed Aleidis.
Otto fought in the Stedinger Crusade in 1234..
Otto II, Count of Guelders was the son of Gerard III, Count of Guelders and Margaretha of Brabant.
- Elizabeth of Guelders, married Adolf VIII of Berg, no issue;
- Margaret of Guelders, married Enguerrand IV, Lord de Coucy, without progeny.
Otto married as his second wife Philippe of Dammartin in 1253, and they had four children:
- Lexicon geschiedenis van Nederland & Belgie. Mulder, Liek and Jan Brouwers eds. Utrecht; Antwerpen: Kosmos-Z&K, 1994
- Wi Florens--: de Hollandse graaf Floris V in de samenleving van de dertiende eeuw. De Boer, D.E.H., E.H.P. Cordfunke, H. Sarfatij, eds. Utrecht: Matrijs, 1996, pp. 24-29
- Carsten Selch Jensen, "Stedinger Crusades (1233–1234)", in Alan V. Murray (ed.), The Crusades: An Encyclopedia, 4 vols. (ABC-CLIO, 2017), vol. 4, pp. 1121–1122.
- Medieval Battles in the Low Countries
- Butkens, C. (1724) Trophées tant sacrés que profanes du duché de Brabant (The Hague), Vol. I, Preuves, p. 82, "Lettre tirée des chartes de Brabant".
- Franconia from Medieval Lands
- Kronijk van Arent toe Bocop, p. 188.
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