Morgan Eastwood penned a touching tribute to Christina Sandera after her tragic death at 61 years old. The 27-year-old daughter of Hollywood legend Clint Eastwood took to Instagram on Sunday, July 21, and shared a photo from her wedding day that featured both her dad and his late partner. “A devastating loss for our whole family,” she wrote. “Thank you Christina for being a good partner to my Dad. You will be missed.” As OK! previously reported, Christina’s death was confirmed on Thursday, July 18. Clint released a statement praising her as a “lovely, caring woman” and added he’d “miss her ver…