The stunning gothic church and convent of St Clare stands out from the other churches of Oristano for its unique architectural style both inside and out. The church was built in 1343 under Peter III of Arborea, and was consecrated in 1428. It stands on the site of what had previously been a church dedicated to St Vincent. The original square apse is still conserved in the present building, upon which you can see the emblems of the then royal family.