▁the ▁Elect or ate ▁of ▁T rier ▁more ▁seriously , ▁the ▁Lord ▁of ▁El tz ▁was ▁made ▁a ▁her edit ary ▁count ▁of ▁the ▁elect oral ▁castle ▁of ▁Tr utz elt z ▁and ▁the ▁Lord ▁of ▁Sch one ck ▁like wise ▁at ▁R aus chen burg . ▁An ▁agreement ▁of ▁at on ement ▁was ▁concluded ▁with ▁John ▁of ▁El tz ▁in ▁late ▁ 1 3 3 7 . ▁He ▁appears ▁to ▁have ▁been ▁the ▁inst ig ator ▁and ▁sp okes man ▁of ▁the ▁resistance ▁to ▁Arch bishop ▁Bald win ▁- ▁which ▁is ▁probably ▁why ▁this ▁dispute ▁is ▁called ▁the ▁" E lt z ▁Fe ud ". ▁ ▁Prim itive ▁can n ons ▁known ▁as ▁p ots - de - fer ▁are ▁known ▁to ▁have ▁been ▁used ▁at ▁the ▁sie ge ▁of ▁El tz ▁Castle , ▁which ▁is ▁the ▁first ▁recorded ▁instance ▁of ▁art illery ▁being ▁used ▁in ▁Germany . ▁ ▁References ▁ ▁Liter ature ▁▁ ▁Julia ▁E ulen stein : ▁Reb ell ion ▁der ▁„ Ü ber m üt igen “ ? ▁Die ▁El t zer ▁Fe h de ▁Bal du ins ▁von ▁T rier , ▁ 1 3 3 1 – 1 3 3 7 . ▁In : ▁Kur tri er isches ▁Jahr buch . ▁Vol . ▁ 4 6 , ▁ 2 0 0 6 , ▁, ▁pp .   7 9 – 1 1 5 . ▁ ▁Julia ▁E ulen stein : ▁Um k ämp ft es ▁„ Land “ ▁– ▁Die ▁Fe h def ührung ▁Bal du ins ▁von