谋杀发生在1208年，wikipedia在士瓦本的菲利普的页面给出的凶手是Count Otto VIII of Wittelsbach，链接到一个机器翻译的德语页面。《德意志史 第一卷》（下册13页）给出的是巴伐利亚行宫伯爵维特尔斯巴赫的奥托。这证明这个奥托是当时统治巴伐利亚的维特尔斯巴赫家族的，当时的巴伐利亚公爵是Louis I（1183-1231）。关于他们之间的关系，由于机器翻译的关系，并不是很明确。
“Otto VIII. by Wittelsbach, Pfalzgraf of Bavaria (* 1180 ago; † 7. March 1209 in upper village with Kelheim), was the son of Otto VII. (Pfalzgraf of Bavaria) († 18. August 1189). Its brother was Otto I. (Duke of Bavaria), who became 1180 as first Wittelsbacher a duke of Bavaria. A further brother of the old Pfalzgrafen was Konrad von Wittelsbach, that than Konrad I. from 1162 to 1165 and again from 1183 to 1200 archbishop of Mainz and/or. as Konrad III. from 1177 to 1183 archbishop from Salzburg was. The cousin by Otto VIII. is the duke of Bavaria Ludwig I. the Kelheimer.”
Pfalzgraf of Bavaria不知道是不是一个确定封地的爵位，也许像后来奥地利帝国的皇子们都封为无确定封地的奥地利大公一样。
另附一段关于巴伐利亚公爵Otto I的父亲的wiki
“Otto IV, Count of Wittelsbach (c. 1083 – 4 August 1156) was a descendant of Count Otto II of Scheyern and Richgard of Weimar-Istrien. Otto entitled himself after Wittelsbach Castle near Aichach from 1116 onwards, served Henry V, Holy Roman Emperor and was Count palatine of Bavaria since 1120.
Otto was married with Heilika of Lengenfeld-Pettendorf, a daughter of Count Friedrich III of Pettendorf-Lengenfeld-Hopfenohe. Their sons were Otto I, the first Wittelsbach duke of Bavaria and Conrad of Wittelsbach, archbishop of Mainz and Salzburg.”
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