CESAR from Dysart, Fife, Scotland
I located a group of CESARs in Scotland in the 1700s. They are as follows:
+ Catharin BEAL
1...William CESAR, Christened: 13 Dec 1749
2...Thomas CESAR, Christened: 29 Sep 1751
3...Peter CESAR, Christened: 4 Nov 1753
I have found that the doctor of Mary, Queen of Scots was named Cesar and this became his surname. He was brought to Mary from Italy.