Complex sentence: There are plans to build a new chapel on the property that will house the relics of both St. Damien de Veuster and St. Marianne Cope, whose mortal remains were enshrined at the Cathedral on July 31,2014.
Split into simpler sentences: There are plans to build a new chapel on the property that will house the relics of both St. Damien de Veuster. The mortal remains of St. Marianne Cope were enshrined at the Cathedral on July 31,2014.