I have a William Ranny,tertius marrying in 1783 in Alva.(witnesses William and James Ranny) He is still "tertius" at his child's baptism in 1800. There is also a William Ranny junior's family in the OPRs between 1776 and 1794, so that's obviously not his father.There's a William Ranny Sr. and William Ranny Jr witnessing the baptism of James Ranny's son in 1793.
Could William Ranny,tertius have been a younger cousin of William Ranny,junior? or was tertius strictly used for a grandson of the same name?
Any help would be appreciated, as I am completely bewildered.
Elisabeth