What Sources make Eticho I, count in Ammergau wife Adelinda / Egila von Babenberg?
What Sources validate these as his children: Rudolf II Count of Andech Adelbert, bishop of Salzburg Reginolf von Schwaben Gerhard von Schwaben Berenger von Schwaben, Herzog Adellinde von Schwaben, Princess Ato von Schwaben, Herzog?
cf http://fmg.ac/Projects/MedLands/WURTTEMBERG.htm#Etichodiedafter911B
ETICHO, son of [WELF [I] Graf im Linz- und Alpgau & his wife ---] (-after 911, bur Ammergau). The primary source which confirms his parentage has not yet been identified. The Historia Welforum names "Eticho…Iuditæ frater"[1803] but this is chronologically impossible. Graf im Ammergau.
m ---. The name of Eticho's wife is not known.
Eticho & his wife had one child:
1. HEINRICH