He served as chancellor for his kinsman , Charles Martel .
Saint Chrodegang ( Latin : Chrodogangus ; German : Chrodegang , Hruotgang ; died 6 March 766 AD ) was the Frankish Bishop of Metz from 742 or 748 until his death .
Saint Chrodegang served as chancellor for Saint Chrodegang 's kinsman , Charles Martel .
Saint Chrodegang ( Latin : Chrodogangus ; German : Chrodegang , Hruotgang ; died 6 March 766 AD ) was the Frankish Bishop of Metz from 742 or 748 until his death .