Complex sentence: The Agrocampus Rennes (in French called in full "École nationale supérieure agronomique de Rennes", meaning "Higher Institution for agricultural sciences of Rennes") was a French grande école created in 1849, training students mostly in the agronomy and life sciences fields.
Split into simpler sentences: The Agrocampus Rennes, alternatively named in French: "École nationale supérieure agronomique de Rennes" (for "Higher Institution for agricultural sciences of Rennes"). It was a French grande école created in 1849, training students mostly in the agronomy and life sciences fields.