Dom Ferdinand II was a German prince of the House of Saxe-Coburg and Gotha-Koháry, and King of Portugal jure uxoris as the husband of Queen Maria II, from the birth of their first son in 1837 to her death in 1853.
In keeping with Portuguese law, only after the birth of his son in 1837 did he acquire the title of king. Ferdinand's reign came to an end with the death of his wife in 1853, but he served as regent for his son and successor, King Pedro V, until 1855.