Clan Douglas
Lanarkshire was granted a coat of arms by the Lord Lyon on 24 December 1886. The arms is: Party per chevron gules and argent, two cinquefoils pierced in chief ermine, and in base a man's heart counter-changed. The cinquefoils come from the arms of the Clan Hamilton, and the heart from the arms of the Clan Douglas, the two main local families. The crest is a demi-eagle displayed with two heads, sable beaked gules. The motto is "VIGILANTIA".