Lucas 1946, p. 79. Lucas, Henry S. (1946). "The Low Countries and the Disputed Imperial Election of 1314". Speculum. 21, No. 1 (Jan.) (1). The University of Chicago Press: 72–114. doi:10.2307/2856839. JSTOR2856839. S2CID162348376.
Lucas 1946, p. 79. Lucas, Henry S. (1946). "The Low Countries and the Disputed Imperial Election of 1314". Speculum. 21, No. 1 (Jan.) (1). The University of Chicago Press: 72–114. doi:10.2307/2856839. JSTOR2856839. S2CID162348376.
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Lucas 1946, p. 79. Lucas, Henry S. (1946). "The Low Countries and the Disputed Imperial Election of 1314". Speculum. 21, No. 1 (Jan.) (1). The University of Chicago Press: 72–114. doi:10.2307/2856839. JSTOR2856839. S2CID162348376.