Sorry to have been a bit slow in getting back to you. Been having problems with one of our dogs!
Now this gets interesting. According to my data, Johannes and Margaret had 4 children, 3 sons and 1 daughter, called Johane:
Thomas b. 1490; Robert b. 1492; Johane b. 1494; and Richard b. 1496.
This would fit in with Johannes dying in 1498. However, my date of death for Johannes is 6th July 1498, and he married Margaret Brinkhurst on 6th July 1487. Something seems a bit awry here, too with both events being on 6th July. Possible, I suppose, but highly unlikely. What do you think?
Now regarding your date of death for Johannes - 8th October 1566 - this is the date of death that I've got for Johannes and Margaret's daughter, Johane who was born in 1494. Juxtaposition of first names and gender causing the error?
Have you got the date and place of death for Margaret Brinkhurst? Her father was Thomas Brinkhurst - dates unknown; Margaret's mother unknown.
Hope this might help! Incidentally, my connection with the Lovejoy family is through my paternal great grandmother, Martha Lovejoy 1861-1948. I was five years' old when Martha died and I've got no recollection of her. Found out the Lovejoy connection when doing family history research about ten years' ago. My family tree is on Genes Reunited. Perhaps you are a member, too?