Marcos, 89, and Monica, 87, have been married and living in their apartment in Buenos Aires, Argentina, for 65 years. In 2007, Monica was diagnosed with Alzheimer’s disease. Since that moment, her husband devoted all his time to take care of her.

Monica later died in their apartment, in Marcos’s hands, as he was going to change her diaper. He visits her grave at least once a month in the cemetery.