St Rufino Cathedral The San Rufino Cathedral, or Duomo of Assisi, was built in the eighth century, then rebuilt around the year one&lt;br/&gt; thousand. The Cathedral is in the Romanesque style of Umbria, austere, with three rose windows and three &lt;br/&gt;doorways. Inside the baptismal font, which is said to be one in which they were baptized St. Francis, St. Clare and Frederick II of Swabia.