[pax_et_bonum]

But why would he ask His Father to forgive?

He thought they deserved it because they did not understand what they were doing.

In a previous post you said, "He (the father) cannot forgive for his son."

During the crucifixion, Christ and His Father behaved in a way which is in direct contradiction to your reasoning.

[P-40]

Christ and His Father behaved in a way which is in direct contradiction to your reasoning.

You are talking about God and His Son. Not some earthly parent and his son. Big difference there.