Isabella I of Jerusalem tried to play Isabella and her husband off against him, but Humphrey did homage to the royal couple. Isabella was the daughter of Amalric, King of Jerusalem, by his second wife, Maria Comnena. Maria Comnena (who was a grandniece of the Byzantine Emperor, Manuel I Komnenos) married Amalric on 29 August 1171. Isabella was born before September 1172. Amalric died unexpectedly on 11 July 1174. His son by his first marriage, Baldwin IV, was crowned king two weeks later. Before long, it became obvious that Baldwin suffered from lepromatous leprosy. To secure the succession of the ailing king, his sister,
Baldwin of Biggar later name, Houston ("Hugh's "tun" or manor"). The lands of Pettinain were situated between Baldwin's lands of Biggar and the Lanark Castle, from where Baldwin administrated the entire region. It is very likely that both Baldwin and Hugh were Flemish. Baldwin's stepson, John, was the eponym of Crawfordjohn. Baldwin of Biggar Baldwin of Biggar was a mid-12th century Scottish magnate. He was granted the lordship of Biggar, and was made Sheriff of Lanark/Clydesdale by David I, King of Scotland. Baldwin and Herbert, Bishop of Glasgow commanded the Scottish forces at the Battle of Renfrew in 1164. It is likely that