The phrase "century convent" refers to a religious building that was built or established in the past, specifically within the last hundred years. Full definition
Villa hotel in refurbished Italianate 17th century convent with breathtaking views - Elegant, individually styled guestrooms... (travelweekly.com)
GAMeC (Galleria D'Arte Moderna e Contemporanea) was founded in 1991 in a renovated 15th century convent in Bergamo in northern Italy. (whitechapelgallery.org)
A dramatically reborn 15th century convent with 118 rooms and suites, the intimate Four Seasons is just a few steps from Milan's couture houses and financial district on the exclusive Via Gesù, between Via Montenapoleone and Via della Spiga. (thetravelmagazine.net)