Listen to Rondellus: O Summ Regis Mater Inclita online. Rondellus: O Summ Regis Mater Inclita is an English language song and is sung by Ensemble Sanstierce. Rondellus: O Summ Regis Mater Inclita, from the album Nostre Dame, was released in the year 2016. The duration of the song is 2:01. Download English songs online from JioSaavn.