Making this thread to list some interesting cases I came across on Wikipedia…
Robert of St. Albans: An English-born Crusader of the Knights Templar, not only did he abandon the Crusade and convert to Islam, but he then married the niece of Salahudeen and became one of his generals!
Lord Rowland Allanson-Winn, 5th Baron Headley - A British Lord who became Muslim in 1913. Being the prominent European noble of Muslim faith, Albania asked him to become their King in 1925 but he refused.
Lord Sir Abdullah Archibald Hamilton, 5th Baron of Trebishun. - Another British Lord who became Muslim in 1924, and whose wife converted upon marriage in 1927.
Murad Wilfried Hofmann - a prominent German diplomat and Ambassador, who converted to Islam in 1980 at the age of 49.
Adam Neuser - A German priest in the 1500s who together with a colleague began preaching that God is One and publically opposed the Trinity. Jailed by the Church for denying that Hazrat Isa (pbuh) was divine, when he found out that his colleague was tortured and beheaded he broke out of jail and escaped to Istanbul, where he converted to Islam.
