Who had the most important back to back Wrestlemania matches?

Im not necessarily talking about best matches, bc Shawn went 3 for 3 at WM 19, 20, and 21 with his matches with Y2J, then Triple H and Krispen Wah for the Big Gold, and finally Kurt Angle. The latter one being one of the best WM matches of all time imo

What i mean is most career defining and iconic. Like for example the main one i can think of is Stone Cold with WM 13 and 14. The submission match with Brett is the one that really solidified Austin as a top tier performer and some even say the beginning of the Attitude Era. Becoming a main eventer. Then winning the strap from HBK is obvious. His first world title and the "beginning of the Austin Era" to quote good ol JR. So thats one example but im sure there are more so i would like to hear your guys thoughts.

Another contender could be John Cenas WM 20 and 21 bc one is winning his first singles title and the next is his first world title and the start of his legendary run. Unless i am wrong and WM 20 was his second run as US champ cuz i know he won it twice during that time period. But the Big Show match wasnt as career defining as say Austins submission match so idk.