A mounting bracket to be used in connection with securing sunshades to a wall mullion. The mounting bracket including a pair of bracket elements matingly engageable with each other with one bracket element being securable to one mounting arm of one of the sunshades and the other bracket element being securable to one mounting arm of an other of the sunshades and with each bracket element being removably securable to the mullion, such that each bracket element is disengageable from the other bracket and removable from the mullion. A plurality of the mounting brackets may be used to secure a plurality of the sunshades in a side-by-side manner to a plurality of wall mullions.