Not sure I have the right Willm Cantrell but this...
http://www.genuki.org.uk:8080/big/eng/LIN/Heckington/heckington_burials_1561.pdf
shows he died in 1571. Wife died in 1571.
FWIW.
Based on the word “Reuennes” which can be found in several books written in the mid 1500’s, the 1571 date is in the right ballpark.
William Cantrell and William Dix were both granted lands in Sussex that had been stripped from Thomas Howard, 4th Duke Of Norfolk (new creation) in 1572.
Perhaps this Cantrell is the son of R2nd's Cantrell.