Protecting Family?

[Lord Preston]

What do you use to protect your family from assassins?

In my current game Milan has been sending multiple assassins at my generals so i've stacked multiple 5+ star spies with my family members to protect them. I've even stacked an assassin with them, not sure if it does anything but worth a try. Anyway, just through pure number of attempts they end up being successful, a 1 star assassin killed my King that had retinues and traits gained from repelling previous attempts plus 4 quality spies + assassin protecting him.

What more can I do to protect my family early? I haven't had the right location/time/money to train assassins up to kill these hostile assassins so should I just do what Milan has been doing to me and use pure quantity even if the odds are only 15% and could potentially make my assassin 0 star?

Am I just doing something wrong with my spies? I send them to spy on something then return them to my family member to train them up, does this stop them protecting him because they've used there turn?

Any would be great, struggling with the low number of generals I have atm since haven't had and adoption offers (i usually reject but will take anything atm, having to use leaderless armies to defend multiple directions).

Ta.