Complex sentence: His earliest confirmed work is the Gravestone of Eberhard von Grumbach in the Pfarrkirche at Rimpar, this may be the type of work he started out with before obtaining large Church commissions.
Split into simpler sentences: His earliest confirmed work is the Gravestone of Eberhard von Grumbach in the Pfarrkirche at Rimpar. This may be the type of work he started out with before obtaining large Church commissions.