Frederick Christ Trump Sr. (October 11, 1905 – June 25, 1999) was an American real-estate developer and businessman. He was the father of Donald Trump, the 45th and 47th president of the United States, along with four other children. Born in the Bronx in New York City to German immigrant parents, Trump began working in home construction and sales in the 1920s before heading the real-estate business started by his parents (later known as the Trump Organization). His company rose to success, buil...