https://en.wikipedia.org/wiki/Terry_Wogan#Honours_and_awards
Wogan was appointed an Honorary Officer of the Order of the British Empire (OBE) in 1997 and elevated to an Honorary Knight Commander of the same order (KBE) in the Queen's Birthday Honours in 2005. After asserting his right to British citizenship (he retains his Irish citizenship) that year, the knighthood was made substantive on 11 October 2005, allowing him to use the style "Sir".
Wogan was appointed an Honorary Officer of the Order of the British Empire (OBE) in 1997 and elevated to an Honorary Knight Commander of the same order (KBE) in the Queen's Birthday Honours in 2005. After asserting his right to British citizenship (he retains his Irish citizenship) that year, the knighthood was made substantive on 11 October 2005, allowing him to use the style "Sir".
Wogan was appointed an Honorary Officer of the Order of the British Empire (OBE) in 1997 and elevated to an Honorary Knight Commander of the same order (KBE) in the Queen's Birthday Honours in 2005. After asserting his right to British citizenship (he retains his Irish citizenship) that year, the knighthood was made substantive on 11 October 2005, allowing him to use the style "Sir".