Complex sentence: In a 1355 document a rock is named as the "Bunenstein" and recorded as being situated at the same spot as the Heidelsburg and sold by Count Arnold of Homburg to Count Walram of Zweibrücken.
Split into simpler sentences: In a 1355 document, a rock formation is named as the "Bunenstein" and recorded as being situated at the same spot as the Heidelsburg. It was sold by Count Arnold of Homburg to Count Walram of Zweibrücken.