The Great Bowden parish register was begun in 1559. Thus, that is the starting date for searching the Fish family in this parish. The first Fyshe in the registry for burials is Augustine Fyshe, May 7, 1560.
There is also an entry for another Augustine Fyshe on January 26, 1579/80.
Others have speculated that the latter Augustine Fyshe was the father of John Fyshe. (JDF p. 57)
I believe that Augustine FYSHE could be my maternal 12th great grandfather.