There are different mentions of a "Richaldus" in the Mongol court, and it is generally assumed by modern historians that they refer to the same individual, but it is not certain.
In 1262, a Rychaldus was known to have been accompanying an aborted Mongol embassy sent by Hulagu,[1] which was intercepted by an ally of the Egyptian Mamluks, King Manfred of Sicily.
[1] The name Rychaldus is best known for being a member of the Mongol embassy to the Second Council of Lyon in 1274, sent by Abaqa, together with the Dominican missionary David of Ashby.
[2] At the Council, Rychaldus delivered a report which outlined previous European-Ilkhanid relations under Abaqa's father, Hulagu.
[3][4] Rychaldus also talked of how Hulagu had "remitted Jerusalem to the Christians during his 1260 campaign in Syria", though this was doubtless propaganda, as no such event was recorded by any other sources.