Complex sentence: With the constructon of the nearby Allianz Arena, an international competition for an artwork was initiated which was won by Timm Ulrichs who created a copy of the church as building structureas the Fröttmaning mountain had been included in the competition area.
Split into simpler sentences: With the constructon of the nearby Allianz Arena, an international competition for an artwork was initiated which was won by Timm Ulrichs. He created a copy of the church as building structure as the Fröttmaning mountain had been included in the competition area.