Complex sentence: The Holy Cross school badge was a shield with a cross and three wavy lines depicting the sea, due the schools close proximity to the coast and the schools motto was, "In hoc signo vinces", meaning "In this sign you will conquer".
Split into simpler sentences: The Holy Cross school badge was a shield with a cross and three wavy lines depicting the sea, due the school's close proximity to the coast. The school's motto was, "In hoc signo vinces", meaning "In this sign you will conquer".