In the monastery of Molesme, in Gaul, St. Robert. He was the first Cistercian abbot. – Roman Martyrology for April 29
St. Robert founded the monasteries at Cîteaux and Molesme that laid the groundwork for the Cistercian Order. The few images of him that I have seen have him in the Cistercian habit but do not use any other identifying attributes.
does show him holding models of his two monasteries.
Prepared in 2014 by Richard Stracke, Emeritus Professor of English, Augusta University, revised 2015-11-13.