Wow, my first thought would have been:
"My grandfather often (did me a favor and) came to me"
but on review I think I can see why that would be an awkward translation.
(1) 窶堋カ窶堋「窶堋ウ窶堙 would be strange unless you're actually addressing your grandfather (or revered "old man"), or possibly your grandmother if both grandfather and grandmother are highly ranked.
(2) 窶堋ォ窶堙??堋ュ窶堙ェ窶堙懌?堋オ窶堋ス would perhaps be stranger than 窶堋ス窶堋ク窶堙銀?堙??堋ォ窶堙??堋ュ窶堙ェ窶堙懌?堋オ窶堋ス or something for that meaning?