Complex sentence: Dol-de-Bretagne Cathedral (French: "Cathédrale Saint-Samson de Dol") is a Roman Catholic cathedral in Dol-de-Bretagne dedicated to Saint Samson, one of the founding saints of Brittany.
Split into simpler sentences: Dol-de-Bretagne Cathedral (French: "Cathédrale Saint-Samson de Dol") is a Roman Catholic church located in Dol-de-Bretagne. The cathedral is dedicated to Saint Samson, one of the founding saints of Brittany.