In the same place it is said (and we are to remember that those writers lived at the time of the Emperor Frederick I) "that the ancient jurists had always been of opinion that the succession of fiefs in a collateral line did not extend further than to brothers-german, though of late it was carried as far as the seventh degree, and by the new code they had extended it in a direct line in infinitum." It is thus that Conrad's law was insensibly extended.
"Juriskontsultu zaharrek beti esan izan zutela feudoen oinordekotza lerro zeharkakoan ez zela pasatzen odol-anaietatik aurrera; nahiz eta garai modernoetan zazpigarren graduraino eraman izan, hala nola lerro zuzenean, eskubide berriari esker, infinituraino eraman izan baitzen". Halaxe joan zen Konradoren legea pixkanaka hedatuz.