Acts 12:3

And because he saw it pleased the Jews, he proceeded further to take Peter also. (Then were the days of unleavened bread.)

When he saw that it pleased the Jews, he proceeded to seize Peter also. This was during the days of unleavened bread.

And when he saw that it pleased the Jews, he proceeded to seize Peter also. And `those' were the days of unleavened bread.

and having seen that it is pleasing to the Jews, he added to lay hold of Peter also -- and they were the days of the unleavened food --

And seeing that this pleased the Jews, Herod proceeded to seize Peter during the Feast of Unleavened Bread.