JOHN (Sir) de COKAYNE
JOHN (Sir) was born in 1346.¹   He died at the age of 23 in 1369.¹ 

 CECILIA de VERNON
CECILIA was born in 1348 in Ireton, Derbyshire, England.¹ 

 Baron) de COKAYNE (Sir JOHN
Baron) de COKAYNE (Sir was born in 1370.¹   He died at the age of 59 on May 22nd, 1429.¹ 

 Edmund de Cokayne