Thomas Alexander
Crichton
c1235
       
        William Crichton
c1270
    married Isabel de Ros    
        Edward Crichton
c1330
     married Christian Ker    
        Robert Crichton
c1345
     married Christina Erskine    
        Robert Crichton
c1375
       
        Robert Crichton
c1410
       
             
Elizabeth Crichton
Patrick Crichton
c1435
 
married
William Douglas
Agnes Crichton
1488
 All persons named in this chart are my ancestors.        married
Andrew Ker