depending

Behind the shield are placed in saltire two batons representing that belonging to his office, and round the shield is placed a gold collar of SS, and a triple chain also of gold, and depending from it

From the moment of his birth, man cannot get along without depending on others.

I'm depending on you.

'That' has only the two cases, nominative and objective, and it does not inflect depending on the case.

At present a very great number of people are seeking to participate and, depending on circumstances, up to a month ahead is fully booked.

Depending on which you think of as the main point, either is OK.